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Here we go again, another Mentor-Mentee Game, the first of 2018 and perhaps one of the last at the Vancouver Bridge Centre, which is likely to be moving in October. The optimist in me says that there are good people in the Vancouver bridge world and some solution will be found so that the city can continue to have a centralized full time club. The optimist in me also says that I can play the 22 boards you played against three world championship computers and emerge unscathed. Maybe that's even more optimistic than the previous statement. Let's find out.

This website contains all 22 deals, as well as comments on them by Bruce McIntyre. Before playing the deals, I had JACK, the computer program from Holland that usually wins the computer bridge world championships, play them with four fairly strong players at each table. The results from that tournament are saved in a file, which I feed to another little program that I wrote, which creates a template file for me to write comments. This template file also tips me off as to which Mentee seat (South or West) to sit in, usually basing it on the more interesting hand, usually the declaring side but occasionally the defender. This means that I'll be playing West on some deals and South on others, and thus the comments will not all be from one perspective. You'll see in the headings that the background colour of the hand I played is gray, not black like the others. When I play the deals, I compare the score that I and my computer partner make against the two computer opponents, hoping to impress you!

All 50 tables plus my table are playing Standard American Yellow Card at least the version JACK plays (which occasionally is found to be different than the real thing). SAYC continues to be a good starting point on the way to 2/1, the system that dominates tournament bridge in North America. Without getting into the endless different bells and whistles that players choose for their 2/1 systems, I will occasionally make a comment on how a plain vanilla 2/1 auction might differ from SAYC.

To help you see what the computer players did, we show the complete deal, a sample auction (usually the one I had). Calls with an asterisk (*) appended are alertable or announceable and there will usually be an explanation in the comments. Calls with a plus sign (+) appended are not alertable but are special in some way and there will be an explanation in the comments. Beside the sample auction is the list of computer results, in order of frequency (with mine in blue at the bottom of the list, even if it matches a more frequent result). You can see how each result fared in the computer tournament by looking at the NS% column (you'll have to figure out EW% for yourself...). This is not a prediction of how well a result will score in the real game: that's almost unpredictable! On the right hand side of a wide screen, but down below if your screen is not wide enough, are my comments on the deal. Scroll down to see them all, plus the stats on the deal at the bottom. Below that are two more frequency lists. The first is a list of "six-packs": the first six calls in the auction and who made them (ignoring passes) from which you can see how auctions begin and develop at different computer tables. The second counts the most common opening lead cards. On some deals where both sides might become declarer, this list will include cards from different hands, but on deals where the same hand is usually declarer, this will show which cards were chosen by the artificial intelligence the most often.

The buttons along the top of the screen allow you to jump from board to board easily instead of scrolling along forever. You can view the hands in the order you played them (sometimes this helps to jog your memory of the afternoon, try it!) or view the interesting ones you starred on your scoresheet to take a good look at later.

As always, what you see will depend a little bit on your browser and screen size. I have designed this to fit nicely on an iPad-sized screen and used specifically-selected fonts available to iOS, but I've specified similar ones when this page loads on other platforms.

The computer opponents are set a little bit easier this time, but as always they never forget a card and I will have my work cut out for me to finish with a decent score against machines that never forget a played card...
 
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Board North None vul
North dealer
1 8
3
West KQJ73 East
QT752 JT7653 K94
A72 KT964
AT6 South 8
Q2 AJ63 K984
February 17, 2018 QJ85 Matchpoint pairs
9542
A
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- Pass Pass 1♦ 5♦Xs-1 100 34 36
1♠ 2♠+ 2NT* Dble 4♦s= 130 8 87
3♠ 5♦ Pass Pass 4♠Xw-1 100 3 76
Dble end 5♦Xs= 550 2 99
5♦s-1 50 1 72
4♦Xs= 510 1 96
5♦s-2 100 1 36
5♦Xs-3 500 1 0

A wild hand to start the set off. My 1♦ opener is overcalled, and the next two players make bids that show support: partner cuebids the opponents' suit, and RHO bids 2NT, which JACK claims shows spade support. I'm not sure this is in SAYC, but since it looks to me like I have fine defense against both 3♠ and notrump, I make a penalty double. West retreats to 3♠ and I want to double again, but partner overrules and I am dumped into 5♦, which West doubles. This does not go well. I win the spade lead and the A♣, but then try to pull trumps. West wins his A♦ and plays another, and I end up down three for a complete bottom. How the computers escaped with ten tricks is beyond me; I've replayed this hand twice and I can't even make nine. Long day ahead...

McBruce's Result as South: 5♦*s-3, 500 to EW, 0% to NS, McBruce's score so far: 0%


Board #1  NorthSouth East  West 
Highcard Pts.:712912
Freakness:8342
Tricks Available In:
Notrump:6677
Spades:4499
Hearts:4488
Diamonds:9933
Clubs:8855

Six-Packs
(First 6 calls)

Opening
Leads

1♦s;1♠w;2♠n;2NTe;3♦s;3♠w x 50

5♠ x 23
Q♣ x 16
6♦ x 4
A♥ x 3
3♥ x 2
K♦ x 1
T♦ x 1

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Board North N-S vul
East dealer
2 J8642
976
West 7 East
Q7 5432 T93
KQT 842
AT94 South QJ632
KQ97 AK5 AT
February 17, 2018 AJ53 Matchpoint pairs
K85
J86
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - Pass 1NT 2♠s-2 200 35 43
Pass 2♥* Pass 2♠ 2♠s-1 100 11 90
end 2♠s-3 300 4 3
2♠s-2 200 1 43

After a normal 1NT opener, partner transfers to spades and I am left to try to make it. With only one point in dummy this is pretty much impossible. If you ruffed a diamond for an entry to dummy to run the J♠, you might have gone three or four down! Better to have the ten or the nine to try that one: I just plunked down the ace and king and when the queen dropped, I had -200, which was a decent score. Not much fun in these hands so far!

McBruce's Result as South: 2♠s-2 , 200 to EW, 43% to NS, McBruce's score after 2 boards: 21.5%!


Board #2  NorthSouth East  West 
Highcard Pts.:116716
Freakness:4021
Tricks Available In:
Notrump:4477
Spades:6677
Hearts:6666
Diamonds:221010
Clubs:5588

Six-Packs
(First 6 calls)

Opening
Leads

1NTs;2♥n;2♠s;End x 50

K♥ x 27
K♣ x 23

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Board North E-W vul
South dealer
3 98732
932
West 432 East
T 75 A64
AT64 K875
QJ87 South AK65
KQT9 KQJ5 A8
February 17, 2018 QJ Matchpoint pairs
T9
J6432
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - - Pass 6♥e= 1430 24 51
1♦ Pass 1♥ Dble 6♥e+1 1460 14 13
3♥ Pass 3♠ Pass 6♦w+1 1390 12 88
4♥ Pass 4NT Pass 6♦w+1 1390 1 88
5♦ Pass 6♦ end

After RHO doubles partner's 1♥ response, how good is the West hand in support of hearts? Twelve highcard points, a singleton in a key suit and four trumps to the ace. A raise to 2♠ is clearly not enough. Partner pushes to slam but leaves me in 6♦. I decide not to correct back to 6♥ and quickly regret my choice, especially when the first round of hearts catches an honour in the South hand and I play South for QJ doubleton and make seven. The majority of pairs are in 6♥ and we get a poor score. Should I have corrected? I don't think so. I think something went wonky with JACK's evaluation after the Blackwood response. Maybe the missing heart honours spooked the computer!

McBruce's Result as West: 6♦w+1, 1390 to EW, 12% to NSEW, McBruce's score after 3 boards: 18.33%!


Board #3  NorthSouth East  West 
Highcard Pts.:0101812
Freakness:2313
Tricks Available In:
Notrump:001313
Spades:5588
Hearts:001313
Diamonds:001313
Clubs:111010

Six-Packs
(First 6 calls)

Opening
Leads

1♦w;1♥e;Dbl-s;3♥w;3♠e;4♥w x 46
1♦w;1♥e;3♥w;3♠e;4♥w;4NTe x 4

K♠ x 25
3♣ x 11
7♣ x 10
Q♥ x 2
8♠ x 2

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Board North Both vul
West dealer
4 AQT962
J976
West 94 East
J543 T 8
Q8 A5432
Q753 South 8
874 K7 KQJ953
February 17, 2018 KT Matchpoint pairs
AKJT62
A62
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
Pass Pass Pass 1♦ 3NTs= 600 13 36
Pass 1♠ 1NT+ Dble 4♠n+1 650 12 75
Pass 4♠ Pass 4NT 4♣Xe-2 500 6 15
Pass 5♦ Pass 6NT 4♠n= 620 6 57
Dble Pass Pass Rdbl 4♣Xe-1 200 4 5
end 4♠n+2 680 4 91
5♦s= 600 2 36
4♠n-1 100 1 0
5♣Xe-3 800 1 98
3NTs+3 690 1 96
6NTXXs= 2110 1 100

After three deals in which my computer partner has done some odd things, I get a bit frustrated when 1NT doubled is taken out all the way to 4♠. I push on to 6NT and when they double I pull out the rare blue card. West chooses the worst possible lead, the Q♥, and after one trick I have three hearts, three spades, a club and two diamonds, and I need one of the suits to break. Or I could listen to the auction: 1NT by East promised a heart-club two-suiter. This knowledge makes it easy: K♠ and finesse on the second round, for a top score!

McBruce's Result as South: 6NT**s=, 2110 to NS, 100% to NS, McBruce's score after 4 boards: 38.75%!


Board #4  NorthSouth East  West 
Highcard Pts.:718105
Freakness:6481
Tricks Available In:
Notrump:9922
Spades:121211
Hearts:7755
Diamonds:111122
Clubs:5588

Six-Packs
(First 6 calls)

Opening
Leads

1♦s;1♠n;1NTe;3NTs;4♠n;End x 23
1♦s;1♠n;1NTe;3NTs;End x 14
1♦s;1♠n;1NTe;3NTs;4♣e;Dbl-s x 10
1♦s;1♠n;1NTe;3NTs;4♠n;5♣e x 1
1♦s;1♠n;1NTe;4NTs;5♦n;End x 1
1♦s;1♠n;1NTe;5♦s;End x 1

K♣ x 20
8♣ x 13
A♦ x 8
8♦ x 3
Q♥ x 3
K♠ x 3

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Board North N-S vul
North dealer
5 Q6
5
West K9764 East
KJ432 AT842 T97
JT94 AQ87632
T2 South AJ5
53 A85
February 17, 2018 K Matchpoint pairs
Q83
KQJ976
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- Pass 1♥ 2♣ 5♥e= 450 13 41
3♥ 4♣ 4♥ 5♣ 5♥Xe-1 100 12 89
Pass Pass 5♥ end 5♥e-1 50 10 67
5♥e+1 480 8 19
5♥Xe= 650 5 6
5♥Xe+1 750 1 0
5♣s-2 200 1 56
5♥e= 450 1 41

A spirited auction leads to a normal result that illustrates the difference between what actually happens at the table and what the hand records claim can be made. With eleven-card fits and a secondary eight-card fit on the side, of course both sides compete to the five level, and the normal club lead combined with the percentage play in trumps (who finesses with an 11-card fit missing the king?) leads to the expected result of 5♥ making exactly. The first thing the hand records reveal is that E-W could have gotten four tricks against 5♣ doubled for 500. Next it might be noted that 5♥ can actually be defeated when East plays it. Both are mirages though. To defeat 5♥, South must find a low diamond lead, ignoring his ♣KQJ976. This sets up his Q♦ as an entry after partner wins the Q♠ on the second round of spades, which requires a risky duck of the first round of spades. If you found that defense you probably shouldn't be playing in the Mentor-Mentee game! Beating 5♣* for 500 is similarly difficult: West must lead a low diamond from T2 doubleton. If South ducks the king in dummy, East plays the jack and the defenders wait patiently for their two diamond tricks, along with the K♠ and the A♥. If West leads a normal T♦, South covers with the king in dummy and loses only one diamond. So what have we learned? Double-dummy results are not the same as table results, and all those recommended leads from different holdings that you've committed to memory are best most of the time but not all of the time!

McBruce's Result as South: 5♥e= , 450 to EW, 41% to NS, McBruce's score after 5 boards: 39.20%!


Board #5  NorthSouth East  West 
Highcard Pts.:915115
Freakness:6583
Tricks Available In:
Notrump:5566
Spades:331010
Hearts:221011
Diamonds:9844
Clubs:9944

Six-Packs
(First 6 calls)

Opening
Leads

1♥e;2♣s;3♥w;4♣n;4♥e;5♣s x 25
1♥e;2♣s;3♥w;5♣n;5♥e;End x 10
1♥e;2♣s;3♥w;5♣n;5♥e;Dbl-s x 9
1♥e;2♣s;3♥w;4♣n;4♥e;5♣n x 5
1♥e;2♣s;3♥w;5♣n;End x 1

K♣ x 46
5♠ x 1
3♦ x 1
J♥ x 1
A♠ x 1

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Board North E-W vul
East dealer
6 K8653
K6
West 9643 East
42 A3 J97
AJT8 9742
K87 South QT
J542 AQT KT98
February 17, 2018 Q53 Matchpoint pairs
AJ52
Q76
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - Pass 1NT 4♠s= 420 28 55
Pass 2♥* Pass 2♠ 4♠s-1 50 9 10
Pass 3NT Pass 4♠ 3NTs+1 430 7 90
end 3NTs= 400 3 24
3NTs+2 460 1 100
3NTs-1 50 1 10
4♠s+1 450 1 98
4♠s-1 50 1 10

North's 2♥ is a transfer to spades and the continuation to 3NT offers South the choice of game contracts, promising exactly five spades. With two spades South will pass and play 3NT; with four or five spades South will bid 4♠, and with three spades South will usually bid 4♠ but think about it (when you see this happen on defense you can confidently assume the notrump bidder has three trumps). My inkling is that this is awfully close and I use a tool JACK includes to help me. JACK deals out cards from the remaining 39 cards not in my hand to the other three players and if the North hand matches the auction, counts it and checks which contract is better. It is a narrow victory for 4♠, so I make that bid and it turns out to be more difficult than I thought. West leads a club and I have an ironclad heart loser, and possibly two or more diamond losers. I duck the A♣ and the K♣ wins the first trick, and suddenly I need spades to break and to hold diamonds to one loser. The return of the T♦ puts me to the test and I fail, trying the jack. The winning play would be to win the A♦ at trick two and lead a heart towards the king. West can duck but if he does, I win the king in dummy, unblock the A♣, pull trumps ending in hand, and pitch a losing heart on the Q♣, giving up only a club and two diamonds. When West wins the ace, he cannot cash the K♦ and must lead low to East's queen. East has no more diamonds and I can win the next trick, unblock the K♥ and A♣, pull trumps ending in hand, then pitch two diamonds on my Q♥ and Q♣. That's awfully difficult for a non-computer, and I expect 4♠ down one to be worth much more than 10% in the real game.

McBruce's Result as South: 4♠s-1, 50 to EW, 10% to NS, McBruce's score after 6 boards: 34.33%!


Board #6  NorthSouth East  West 
Highcard Pts.:101569
Freakness:3011
Tricks Available In:
Notrump:101033
Spades:101033
Hearts:6677
Diamonds:101032
Clubs:6666

Six-Packs
(First 6 calls)

Opening
Leads

1NTs;2♥n;2♠s;3NTn;4♠s;End x 38
1NTs;2♥n;2♠s;3NTn;End x 12

2♣ x 30
J♥ x 13
7♦ x 5
4♠ x 2

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Board North Both vul
South dealer
7 AQ853
J7
West AQ97 East
T7 J9 KJ6
AT843 Q2
63 South KT842
Q853 942 AT6
February 17, 2018 K965 Matchpoint pairs
J5
K742
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - - Pass 2♠n-2 200 15 22
Pass 1♠ Pass 2♠ 2♠n= 110 7 67
end 2♠n-1 100 6 49
3♦Xe-1 200 4 84
2♠n-3 300 3 3
2NTe-2 200 3 84
3♦Xe-2 500 2 99
3♥w= 140 2 39
3♦e-2 200 2 84
3♥w-1 100 1 57
2NTe= 120 1 42
3♦e-1 100 1 57

Most computer bridge programs, with one human against three computer players, let the human player cross to be declarer whenever the auction makes the human dummy, so I get to struggle to make eight tricks in spades. East leads the 4♦, I duck in dummy and West plays low (why play what might seem like an encouraging 6♦ when West would prefer a switch?). To me the 3♦ looks like a singleton until I see from the spots that East would have led FIFTH-best, so I assume it is the 63 doubleton (any other doubleton and West would try to win the trick). With potential ruffs out there and no sure entry to dummy to take the spade finesse, I try a different tactic: A♠ and a small spade, hoping for a doubleton K♠. No luck; two spade losers. East takes them right away and continues with a heart to West's ace, and a diamond is returned (the expected six). I duck and West wins the king, the fourth trick for the defense. The Q♥ follows and I win in dummy and ruff a heart, then cash my diamond winners. This looks futile: if East has the A♣ he would surely not have passed 1♠, but when I lead a club to the king it wins and I have eight tricks for a good score. Wouldn't you overcall with the East hand? It's risky (and would be too risky in a team game), but in matchpoints surely not as risky as the carnage that the computer Easts brought on themselves by coming in at the three level!

McBruce's Result as South: 2♠n=, 110 to NS, 67% to NS, McBruce's score after 7 boards: 39.00%!


Board #7  NorthSouth East  West 
Highcard Pts.:147136
Freakness:3123
Tricks Available In:
Notrump:6677
Spades:7766
Hearts:5488
Diamonds:5588
Clubs:5588

Six-Packs
(First 6 calls)

Opening
Leads

1♠n;2♠s;End x 31
1♠n;2♠s;3♦e;Dbl-n;End x 6
1♠n;2♠s;2NTe;End x 5
1♠n;2♠s;3♦e;End x 4
1♠n;2♠s;2NTe;3♥w;End x 3
1♠n;2♠s;4♠n;End x 1

4♦ x 18
Q♥ x 10
2♠ x 9
9♠ x 4
J♣ x 3
6♣ x 2
4♠ x 1
6♠ x 1
2♣ x 1
T♦ x 1

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Board North None vul
West dealer
8 K
J764
West J7532 East
AT862 KT7 Q9753
K9 AQT53
T9 South K4
J963 J4 Q
February 17, 2018 82 Matchpoint pairs
AQ86
A8542
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
Pass Pass 1♠ 2NT+ 4♠e+1 450 32 54
3♠ 4♦ 4♠ Pass 4♠e+2 480 11 10
Pass 5♦ Pass Pass 4♠e= 420 6 93
5♠ end 4♠e-1 50 1 100
5♠e= 450 1 54

Yes, the unusual 2NT does normally promise 5-5 in the two indicated suits (minors, or the two lowest other suits if the opening bid is a minor suit). But after partner passes and RHO opens, liberties can be taken in competition to get back in the auction. Partner forces them all the way to 5♠ as I silently fasten an imaginary seatbelt. It's my lead and the A♦ feels wrong, so I try the A♣ instead. Partner plays the seven and declarer plays the queen. On first look this seems like declarer has the KQ♣ doubleton, so I switch to the A♦ and declarer has eleven easy tricks. Where did I go wrong? Shouldn't partner play an encouraging T♣? No: doing so sets up a club trick for declarer. If I continue clubs after partner signals with the ten, declarer plays the jack and ruffs partner's king. He pitchs two diamonds from dummy on established hearts and makes six. The only way to beat it is to lead a low club away from the ace and get a diamond return. Nobody is trying that play, because for every time it works there are counless times where partner's entry is somewhere else and it doesn't...

McBruce's Result as South: 5♠e=, 450 to EW, 54% to NS, McBruce's score after 8 boards: 40.88%!


Board #8  NorthSouth East  West 
Highcard Pts.:811138
Freakness:4363
Tricks Available In:
Notrump:3355
Spades:111010
Hearts:331010
Diamonds:9943
Clubs:8855

Six-Packs
(First 6 calls)

Opening
Leads

1♠e;3♠w;4♠e;End x 50

8♥ x 40
A♣ x 10

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Board North E-W vul
North dealer
9 AK
KQ52
West 53 East
J954 AKJ72 QT32
843 A96
QJ4 South 972
643 876 T85
February 17, 2018 JT7 Matchpoint pairs
AKT86
Q9
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- 2NT Pass 3NT 6NTn= 990 46 55
end 6♣n= 920 4 5
3NTn+3 490 1 0

I'm out on a limb on this one and the limb breaks when slam makes easily, dropping me for a zero and a painful thud. Is a decent ten count enough to get to slam after a 2NT (20-21) opener? The JACK method, which I am not sure is part of SAYC is as follows: 2NT - 3♠ (asking if partner has a minor suit), 4♣ (apparently promising a five-card suit) - 4NT (Blackwood), 5♥ (two aces) - 6♣ or 6NT. Seems awfully lucky to me: 30 combined points and every one of them is working perfectly.

McBruce's Result as South: 3NTn+3, 490 to NS, 0% to NS, McBruce's score after 9 boards: 36.33%!


Board #9  NorthSouth East  West 
Highcard Pts.:201064
Freakness:3200
Tricks Available In:
Notrump:121211
Spades:9944
Hearts:121211
Diamonds:111122
Clubs:121211

Six-Packs
(First 6 calls)

Opening
Leads

2NTn;3♠s;4♣n;4NTs;5♥n;6NTs x 40
2NTn;3♠s;4♣n;4NTs;5♥n;6♣s x 4
2NTn;3♠s;4♣n;5♣s;6♣n;6NTs x 4
2NTn;3♠s;4♣n;5♦s;6NTn;End x 2

A♥ x 23
2♠ x 15
9♦ x 8
8♣ x 3
6♥ x 1

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Board North Both vul
East dealer
10 76
76532
West AK74 East
Q KQ AJT42
KT J
QJ98632 South T5
A54 K9853 JT876
February 17, 2018 AQ984 Matchpoint pairs
932
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - Pass Pass 4♥n= 620 46 47
3♦ Pass Pass 3♥ 4♥n+1 650 4 97
Pass 4♥ end 4♥e-1 100 1 0

Revenge for Board 9 as my opening bid is unique and my lead strikes gold! The computers are certifiably crazy not to open the South hand: 5-5 in the majors, nine points and a void; this is enough for a 1♠ opener in my book. But having passed, the West hand looks more like a pre-empt than an opening bid, even in. third seat. I actually expect North to have some hand similar to South's, so I begin with 3♦ to exert pressure. Against 4♥ the singleton spade seems best, and we get the A♠, a spade ruff, the ace of clubs, and eventually declarer finesses in trumps and loses to my bare king for a zero. Take that, you silicon sillies!

McBruce's Result as West: 4♥e-1, 100 to EW, 100% to NSEW, McBruce's score after 10 boards: 42.70%!


Board #10  NorthSouth East  West 
Highcard Pts.:129712
Freakness:3767
Tricks Available In:
Notrump:6666
Spades:7766
Hearts:101033
Diamonds:4499
Clubs:5588

Six-Packs
(First 6 calls)

Opening
Leads

1♦w;1♥n;1♠e;3♦s;4♥n;End x 34
1♦w;1♥n;1♠e;3♦s;3♥n;4♥s x 14
1♦w;1♥n;1♠e;3♦s;4♦w;Dbl-n x 2

T♦ x 32
J♣ x 15
J♥ x 2
7♣ x 1

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Board North None vul
South dealer
11 AT976
92
West 95 East
542 J865 K8
AKQ53 8764
KJ7 South 8642
QT QJ3 K97
February 17, 2018 JT Matchpoint pairs
AQT3
A432
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - - 1♦ 3♠n-2 100 30 66
1♥ 1♠+ 2♥ 2♠ 4♥w= 420 12 11
3♥ Pass Pass 3♠ 4♠n-3 150 5 29
end 3♠n-3 150 1 29
4♠n-2 100 1 66
3♠n-1 50 1 99
3♠n-1 50 1 99

4♥ makes with the A♠, A♦, and Q♦ all onside, a 12.5% chance, and facing such odds most will sell out to 3♠ as we did. We should get a diamond, two clubs, two hearts, and the king of trumps. The disaster at my table is for once not my fault: I won the heart lead and returned a trump. Declarer ducked and partner won the king and led a second heart. I won this and played a second trump. Declarer won the Q♠ in dummy, and led a spade to his hand. Partner chose as a discard the ... 9♣, killing our second club trick and leaving us with a shared bottom. Discarding is a difficult part of defense, but one of those losing diamonds surely would have been better.

McBruce's Result as West: 3♠n-1, 50 to EW, 1% to EW, McBruce's score after 11 boards: 38.91%!


Board #11  NorthSouth East  West 
Highcard Pts.:514615
Freakness:3112
Tricks Available In:
Notrump:5577
Spades:7766
Hearts:331010
Diamonds:4488
Clubs:7766

Six-Packs
(First 6 calls)

Opening
Leads

1♦s;1♥w;1♠n;2♥e;2♠s;3♥w x 50

7♥ x 38
9♦ x 11
5♣ x 1

123456789012345678901234567890
Board North N-S vul
West dealer
12 AQJ975
Q76
West 6 East
2 542 K864
K984 JT5
QJ83 South KT52
K863 T3 AJ
February 17, 2018 A32 Matchpoint pairs
A974
QT97
123456789012345678901234567890
A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
Pass 2♠ end 2♠n= 110 26 43
2♠n+1 140 15 85
3♦e= 110 2 1
3♦e-1 50 2 10
2NTw-1 50 1 10
3♥e-1 50 1 10
3♠n-1 100 1 4
2NTe-1 50 1 10
3♦e-2 100 1 16
2♠n+1 140 1 85

This run of good board-bad board is beginning to look like one of those global waring graphs that Al Gore displays in his talks. But this result seems normal to me and I'm surprised it paid so well. East has no call to make over the weak two opener and I have no reason to raise with a hand that will be useful on defense and in spades. West might reopen with a double but his values are pretty light. The play is routine: I get the J♥ lead and lose to West's king, then a trump lead back taken by Easts king. A diamond switch puts me in with the ace and I pull trumps, win the A♥ and then the Q♥ and we're dow to the club suit. When East plays the J♣ on the first club trick, I can only lose two clubs and end up losing two clubs and two early kings. A♣ and another on opening lead gets the defeners a ruff, and that appears to be what happens at several tables, giving us a shared top.

McBruce's Result as South: 2♠n+1, 140 to NS, 85% to NS, McBruce's score after 12 boards: 42.75%!


Board #12  NorthSouth East  West 
Highcard Pts.:910129
Freakness:5113
Tricks Available In:
Notrump:6766
Spades:8855
Hearts:5588
Diamonds:4499
Clubs:7766

Six-Packs
(First 6 calls)

Opening
Leads

2♠n;End x 41
2♠n;Dbl-w;3♦e;End x 5
2♠n;2NTw;End x 1
2♠n;Dbl-w;3♥e;End x 1
2♠n;2NTw;3♠s;End x 1
2♠n;Dbl-w;2NTe;End x 1

2♦ x 18
J♥ x 17
T♠ x 7
A♣ x 6
4♠ x 1
6♥ x 1

123456789012345678901234567890
Board North Both vul
North dealer
13 9743
K432
West AK652 East
KJ652 T8
Q987 AJ5
8 South Q973
T42 AQ K953
February 17, 2018 T6 Matchpoint pairs
JT4
AQJ876
123456789012345678901234567890
A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- Pass Pass 1NT 3NTn-2 200 32 52
Pass 2♣+ Pass 2♦ 3NTn-3 300 10 9
Pass 3NT end 3NTn-1 100 7 92
3♣s-2 200 1 52
3NTs= 600 1 100

Rixi Marcus was a star player for the Austrian ladies team before World War II; she escaped Austria just before the Anschluss and lived the rest of her days in London as a bridge professional player and writer. Her motto and best-known book was "Bid Boldly, Play Safe." My "a six card suit is worth an extra point, isn't it?" 1NT opener was surely bold, and after a Stayman inquiry it was time to play safe. I ducked the 7♥ lead and East won the J♥ and switched to the T♠. The queen lost to the king and a second heart came back, ducked again and won by East's ace. (West should have led the queen for maximum pressure at trick three.) East continued with a small club and I thought I detected a slight pause after partner's 2♣ Stayman bid, so I was fairly confident that the jack would win. Next was the jack of diamonds, ducked in dummy to East's queen, the fourth trick for the defense. Anything but a club sets the contract, but East led a club and I finessed again for my ninth trick. So it would appear that I bid boldly and played safe to avoid going down more than one, and a key error by the computer allowed it to make!

McBruce's Result as South: 3NTs=, 600 to NS, 100% to NS, McBruce's score after 13 boards: 47.15%!


Board #13  NorthSouth East  West 
Highcard Pts.:1014106
Freakness:6414
Tricks Available In:
Notrump:7766
Spades:6677
Hearts:6677
Diamonds:8845
Clubs:7756

Six-Packs
(First 6 calls)

Opening
Leads

1♣s;1♦n;3♣s;3NTn;End x 49
1♣s;1♦n;3♣s;End x 1

T♠ x 21
3♦ x 13
5♥ x 9
J♥ x 4
8♦ x 1
8♠ x 1
A♥ x 1

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Board North None vul
East dealer
14 853
Q643
West 87 East
KQ94 Q643 76
K52 AT8
T965 South KQJ3
87 AJT2 AK92
February 17, 2018 J97 Matchpoint pairs
A42
JT5
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - 1NT Pass 3NTe+1 430 39 40
2♣+ Pass 2♦ Pass 3NTe= 400 7 87
2NT Pass 3NT end 3NTe= 400 1 87
3NTe-1 50 1 100
3♦e+2 150 1 98
3NTe+2 460 1 0
2NTe+2 180 1 96

After the Stayman enquiry is your opening lead choice going to be the same? I was ready to lead the J♠ until I remembered that dummy asked about majors before settling in 3NT. Instead, I led the J♣, and this turned out well, but declarer should be able to force three spade tricks by leading from hand. Perhaps the decision not to lead a spade led declarer astray! With all these tops and bottoms I have somehow averaged out after 14 boards, many of them quite difficult hands.

McBruce's Result as South: 3NTe=, 400 to EW, 87% to NSEW, McBruce's score after 14 boards: 50%!


Board #14  NorthSouth East  West 
Highcard Pts.:411178
Freakness:1011
Tricks Available In:
Notrump:3399
Spades:4488
Hearts:5588
Diamonds:221111
Clubs:4498

Six-Packs
(First 6 calls)

Opening
Leads

1NTe;2♣w;2♦e;2NTw;3NTe;End x 42
1NTe;2♣w;2♦e;3NTw;End x 6
1NTe;2♣w;2♦e;2NTw;End x 1
1NTe;2♣w;2♦e;2NTw;3♦e;End x 1

J♠ x 21
J♣ x 12
7♥ x 8
J♥ x 4
2♦ x 3
9♥ x 2

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Board North N-S vul
South dealer
15 AJ875
865
West 652 East
43 82 T9
K AJ9743
AKJT987 South 3
A73 KQ62 KQT5
February 17, 2018 QT2 Matchpoint pairs
Q4
J964
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - - Pass 4♥e= 420 21 47
1♦ Pass h Pass 3NTw-1 50 16 85
3♦ Pass 3♥ Pass 4♥e+2 480 5 10
3♠ Pass 3NT Pass 4♥e+1 450 3 18
4♦ Pass 4♥ end 5♦w+2 440 2 23
3NTw+3 490 2 3
5♦Xw+2 750 1 0
4♥e= 420 1 47

4♥ and 5♦ both make and 4♥ pays more, but AJ9743 is coniderably below he suit quality I would expect on this auction. After the opponents took their two spade tricks, we needed trumps to be 3-3 to make it. Diamonds is much safer, and on this layout many Norths were afraid to lead the A♠, leading to overtricks. I think East should bid 5♦ over 4♦.

McBruce's Result as West: 4♥e=, 420 to EW, 53% to EW, McBruce's score after 15 boards: 50.20%!


Board #15  NorthSouth East  West 
Highcard Pts.:5101015
Freakness:2167
Tricks Available In:
Notrump:1188
Spades:6666
Hearts:111010
Diamonds:001111
Clubs:111010

Six-Packs
(First 6 calls)

Opening
Leads

1♦w;1♥e;3NTw;4♥e;End x 24
1♦w;1♥e;3NTw;End x 17
1♦w;1♥e;Dbl-s;3NTw;4♥e;End x 5
1♦w;1♥e;Dbl-s;3NTw;4♥e;5♦w x 3
1♦w;1♥e;Dbl-s;3NTw;End x 1

K♠ x 23
7♠ x 15
J♣ x 3
8♣ x 3
4♣ x 2
A♠ x 1
8♥ x 1
2♦ x 1
6♣ x 1

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Board North E-W vul
West dealer
16 4
QJ965
West QT5 East
AK9652 QJ64 T7
A7 T43
7642 South AKJ93
5 QJ83 A73
February 17, 2018 K82 Matchpoint pairs
8
KT982
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
1♠ Pass 2♦ Pass 4♠w= 620 20 65
3♦ Pass 4NT Pass 4♠w+1 650 15 29
5♥ Pass 6♦ end 6♠w-1 100 4 90
4♠w+2 680 3 10
6NTe= 1440 2 1
6♠w-2 200 1 97
5♠w= 650 1 29
6♠Xw-2 500 1 100
4♠w-1 100 1 90
6♠w= 1430 1 4
4♠w-2 200 1 97
6♦e= 1370 1 6

Here is a feature of 2/1 against SAYC that is quite useful and which I assumed on this hand, forgetting that in fact we are playing SAYC with JACK. In 2/1 after a major suit opener, a two-level response in a new suit is game-forcing, and the hands that aren't quite game forcing bid a forcing 1NT. But many 2/1 players go further, urging that these two-level responses be fairly good suits, so that if opener raises, as I did here, we are at least thinking about slam. The route to twelve tricks is a bit difficult when spades break 4-1, but two ruffs set up the last two spades for four spade tricks, five trumps, the ace of hearts, ace of clubs, and a club ruff back to dummy (with that crucial fourth trump in the West hand) to cash the last two spades. The hand record claims 13 tricks in diamonds are possible, but you need to know about the spade break to cash in on that deal.

McBruce's Result as West: 6♦e=, 1370 to EW, 94% to NSEW, McBruce's score after 2 boards: 52.94%!


Board #16  NorthSouth East  West 
Highcard Pts.:891211
Freakness:4426
Tricks Available In:
Notrump:111010
Spades:111111
Hearts:7855
Diamonds:001313
Clubs:9944

Six-Packs
(First 6 calls)

Opening
Leads

1♠w;2♦e;3♠w;4♠e;End x 40
1♠w;2♦e;3♠w;4NTe;5♥w;5NTe x 9
1♠w;2♦e;3♠w;4NTe;5♥w;5♠e x 1

Q♥ x 31
Q♣ x 16
Q♠ x 1
8♦ x 1
5♦ x 1

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Board North None vul
North dealer
17 K9765
T42
West A2 East
842 KQ6 Q
KJ65 Q87
Q53 South K9764
A94 AJT3 T732
February 17, 2018 A93 Matchpoint pairs
JT8
J85
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A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- 1♠ Pass 3♠ 3♠n= 140 36 41
end 3♠n+1 170 8 86
4♠n= 420 3 98
4♠n-1 50 3 2
3♠n+1 170 1 86

In this day and age of finding as many sequences as possible to raise partner, and careflly defining all of them, this auction is seldom seen. The last time I saw this auction on a printed page was in a Matchpointer of the 1980s, where the editor slyly placed an asterisk over the 3♠ call and commented that it was "invitational, but the last time they passed one of these was in 1965." But when dummy appears, 3♠ appears to be the perfect spot: two hearts, a club, and a diamond to lose, and no obvious shot at making extras. If one defender has Qxx of trumps we could even be down. So what happened? The 7♥ was led and the K♥ won the first trick and dummy's A♥ took the second. I chose West as the victim if someone had to watch their Qxx of trumps die, so I cashed the ace first and trumps were suddenly no problem, pulled in three rounds. Now the K♣ lost to the ace and another club came back. I won, cashed a third club, and then led the J♦ and ran it, losing to East's king. Back came the seven of diamonds and I saw an opening, inserting the eight and capturing West's queen with the ace. The T♠ was an entry to the established T♦, on which the losing heart went away. Not great defense from the computers, but in matchpoints these things happen and you have to be ready to accept gifts when offered.

McBruce's Result as South: 3♠n+1, 140 to NS, 86% to NS, McBruce's score after 17 boards: 54.88%!


Board #17  NorthSouth East  West 
Highcard Pts.:1211710
Freakness:2040
Tricks Available In:
Notrump:9844
Spades:9944
Hearts:7766
Diamonds:5588
Clubs:6666

Six-Packs
(First 6 calls)

Opening
Leads

1♠n;3♠s;End x 44
1♠n;3♠s;4♠n;End x 6

2♣ x 29
6♦ x 11
7♥ x 10

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Board North N-S vul
East dealer
18 J93
Q87653
West QJ East
AQ8 96 T542
J92
A853 South KT72
732 K76 AQT54
February 17, 2018 AKT4 Matchpoint pairs
964
KJ8
123456789012345678901234567890
A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - Pass 1♣ 3♥n-1 100 34 59
Pass 1♥ Dble 2♥ 4♥Xn-2 500 4 5
3♦ end 3♦w= 110 4 21
4♦w-1 50 4 97
4♦w= 130 2 15
4♦Xw= 510 1 0
3♠e= 140 1 12
3♦w+2 150 1 10

Not sure who should bid 3♥ here, perhaps neither North nor South should, since a double would give E-W 200, even better than the 150 they got. The defensive miscue was my lead of a spade after getting two club tricks; a safer lead would be a trump or a heart, but that cost few matchpoints compared with not getting to 3♥. I see from the Six-Packs that it was South who took the plunge to the three level, but I can't justify it on a 4-3-3-3 hand with close to a minimum. North, with six hearts, really should be the one to be going one level more.

McBruce's Result as South: 3♦w+2, 150 to EW, 10% to NS, McBruce's score after 18 boards: 52.39%!


Board #18  NorthSouth East  West 
Highcard Pts.:614911
Freakness:4060
Tricks Available In:
Notrump:6677
Spades:4499
Hearts:8855
Diamonds:4499
Clubs:331010

Six-Packs
(First 6 calls)

Opening
Leads

1♣s;1♥n;Dbl-e;2♥s;3♦w;3♥s x 41
1♣s;1♥n;Dbl-e;2♥s;3♦w;4♥s x 4
1♣s;1♥n;Dbl-e;2♥s;3♦w;End x 4
1♣s;1♥n;2♥s;Dbl-e;3♥s;End x 1

2♠ x 27
2♦ x 11
9♣ x 10
Q♦ x 1
A♥ x 1

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Board North E-W vul
South dealer
19 J7542
K4
West J East
86 QJ983 AK9
J5 T98
AT8632 South KQ754
K72 QT3 AT
February 17, 2018 AQ7632 Matchpoint pairs
9
654
123456789012345678901234567890
A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - - 2♥ 3♦w+2 150 44 56
Pass Pass Dble Pass 5♦w= 600 6 5
3♦ end 3♦w+2 150 1 56

Easy to see the issue on this hand: South opens 2♥, passed around to East who reopens with a double. Is the West hand enough to bid something stronger than the obvious 3♦? Should East make a move over 3♦? Surprisingly, most of the computers say no to both, and the ones that do get to the cold 5♦ game do so by the doubler rebidding 3♥, a bid I would be afraid to make with only 16 and three stoppers in the opponents' suit! The modern way is to use the Lebensohl convention over doubles of weak twos. West would bid 2NT with minimum values, a forced relay to 3♣, after which West would correct to 3♦, showing about 0-7 points. With this hand though, West has enough to bid 3♦ directly, and East should get to 5♦ easily with the knowledge that West has at least 8 points. Like most bidding conventions, Wikipedia is a good source for information. If you got to 5♦ and North led the K♥ and another, I hope you ruffed the third heart high....

McBruce's Result as West: 3♦w+2, 150 to EW, 44% to EW, McBruce's score after 19 boards: 51.95%!


Board #19  NorthSouth East  West 
Highcard Pts.:88168
Freakness:6524
Tricks Available In:
Notrump:3377
Spades:7766
Hearts:6655
Diamonds:221111
Clubs:7766

Six-Packs
(First 6 calls)

Opening
Leads

2♥s;Dbl-e;3♦w;End x 44
2♥s;Dbl-e;3♦w;3♥e;5♦w;End x 6

K♥ x 38
Q♣ x 10
4♠ x 2

123456789012345678901234567890
Board North Both vul
West dealer
20 AK753
J72
West Q7 East
J94 J54 2
AQ964 K
J4 South AKT6532
KT9 QT86 AQ86
February 17, 2018 T853 Matchpoint pairs
98
732
123456789012345678901234567890
A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
Pass Pass 1♦ Pass 5♦e+1 620 22 67
1♥ 1♠ 3♣ Pass 6♦e= 1370 20 20
3♠ Pass 4♦ Pass 4♥w= 620 3 67
4♥ Pass 5♦ end 4♥w-1 100 1 94
6NTXw-1 200 1 97
6NTw-3 300 1 100
5♥w-2 200 1 97
6♣e= 1370 1 20
5♦e+1 620 1 67

First we miss a cold game, now we miss a cold slam! What's going on? First of all, it is not a cold slam, you need diamonds to break 2-2 or the Q♦ onside, about 75% or so. From the chart we can see that we gain about 47% by bidding six if the slam makes. If it goes down, the pairs in six will be below us on the chart, getting 16% while 5♦+1 would be worth 53%, a loss of 37% if we are wrong. Gaining 47% three times in four while losing 37% once is good odds, so this slam is worth bidding. Who's t fault? Well, call me biassed, but that East hand looks pretty powerful and a Blackwood call after 4♥ would tell East enough. BTW, the 3♠ bid asks for a stopper for a possible notrump game, but also - since it forces East to the four-level without one - shows a pretty good hand. So there's that...

McBruce's Result as West: 5♦e+1, 620 to EW, 33% to NSEW, McBruce's score after 20 boards: 51.00%!


Board #20  NorthSouth East  West 
Highcard Pts.:1121611
Freakness:2182
Tricks Available In:
Notrump:0088
Spades:5588
Hearts:3399
Diamonds:001212
Clubs:001212

Six-Packs
(First 6 calls)

Opening
Leads

1♦e;1♥w;1♠n;3♣e;3♠w;4♦e x 43
1♦e;1♥w;1♠n;3♣e;4♥w;End x 4
1♦e;1♥w;1♠n;3♣e;4♥w;5♦e x 2
1♦e;1♥w;1♠n;3♣e;4NTw;5♥e x 1

6♠ x 43
A♠ x 7

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Board North N-S vul
North dealer
21 4
JT5
West KQT76 East
K862 9632 T75
A643 K92
J32 South A854
Q4 AQJ93 AK8
February 17, 2018 Q87 Matchpoint pairs
9
JT75
123456789012345678901234567890
A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- Pass 1♦ 2♠+ 1NTe+1 120 35 36
Dble Pass 3♥ end 1NTe= 90 14 85
3♥e-1 50 1 100
3♥e= 140 1 0

My overcall of 2♠ propels the opponents to a level where we might get a plus, but my opening lead (9♦) is unfortunate (A♠ and a spade ruff beats it! Who knew?). Now I need a good result on the last board to stay above average.

McBruce's Result as South: 3♥e=, 140 to EW, 0% to NS, McBruce's score after 21 boards: 48.7%!


Board #21  NorthSouth East  West 
Highcard Pts.:6101410
Freakness:4401
Tricks Available In:
Notrump:5588
Spades:5577
Hearts:4488
Diamonds:6677
Clubs:7766

Six-Packs
(First 6 calls)

Opening
Leads

1♦e;1♠s;Dbl-w;1NTe;End x 49
1♦e;1♠s;Dbl-w;1NTe;2NTw;3♥e x 1

J♣ x 49
9♦ x 1

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Board North E-W vul
East dealer
22 QT962
KQJ86
West Q5 East
K8 8 J75
A972 4
AK South JT97632
K9742 A43 Q6
February 17, 2018 T53 Matchpoint pairs
84
AJT53
123456789012345678901234567890
A Sample Auction: What The Computers Did:
West North East South Result NS EW Freq. NS%
- - Pass Pass 2♥s+1 140 11 82
1NT end 4♥s-2 100 8 35
4♥Xs-2 300 7 9
3♠s-1 50 6 57
4♥s-1 50 3 57
4♥Xs-1 100 3 35
3♥s= 140 2 82
2♥s= 110 1 67
5♦Xe-1 200 1 97
4♠s-2 100 1 35
4♥Xs-3 500 1 0
4♠Xs-2 300 1 9

I open 1NT, reasoning that it is a balanced 17 with a five-card suit, offset by the inflexibility of AK doubleton of diamonds. This turns out to be prophetic as I struggle for most of the hand to engineer some sneaky entry to dummy, ending up down two ... and then discovering that all the computers opened 1♣, allowing North to make a Micheals cuebid, and -200 was a near bottom against the fifteen different outcomes that the 1♣ opener begat! -100 if I could sneak a sixth trick would have been decent, but if West had made some move (2♠ as a response to 1NT, forcing a 3♣ rebid, followed by a 3♦ signoff) gettng us to diamonds, we had a chance to break average on the session. C'est la vie...

McBruce's Result as West: 1NTw-2, 200 to NS, 3% to EW, McBruce's final score after 22 boards: 46.5%!


Board #22  NorthSouth East  West 
Highcard Pts.:109417
Freakness:6273
Tricks Available In:
Notrump:7855
Spades:7755
Hearts:8944
Diamonds:3399
Clubs:5577

Six-Packs
(First 6 calls)

Opening
Leads

1♣w;2♣n;2♥s;End x 12
1♣w;2♣n;4♥s;End x 11
1♣w;2♣n;4♥s;Dbl-w;End x 8
1♣w;2♣n;3♠s;End x 7
1♣w;2♣n;2♥s;3♦e;4♥s;Dbl-w x 3
1♣w;2♣n;2♥s;3♦e;3♥s;End x 2
1♣w;2♣n;2♥s;3♦e;3♥s;Dbl-w x 1
1♣w;2♣n;2♠s;3♦e;4♠s;End x 1
1♣w;2♣n;4♠s;5♦e;Dbl-s;End x 1
1♣w;2♣n;2♥s;3♦e;4♠s;Dbl-w x 1
1♣w;2♣n;3♠s;4♦e;End x 1
1♣w;2♣n;4♠s;End x 1

A♦ x 46
5♥ x 2
A♥ x 1

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A very interesting set of hands, many of them quite difficult problems. It will be interesting to see how they are solved in the real game, without computers involved and with newer players in the South and West seats, where there was a fair bit of action. Hope you had fun, and we'll see you at the next Mentor-Mentee game on May 5, again at the Bridge Centre.
 
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