Brain Warmup Department: Unruly!
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For those of you who used to like the puzzles I printed in the old bulletins, here is a link to an online version: one of the puzzles that I used to feature in the old paper Bulletins, but it is easy to play on a computer as well. Not so easy on a tablet or phone, since most of the puzzles require right-clicks, not easily done in a tablet or phone environment. Unruly is one of the puzzles in this collection that I featured regularly in the paper versions but it plays just as well on a computer. Each row and column has an equal number of light and dark cells; no two rows or columns are identical; and any three consecutive cells in a row or column cannot be the same colour (diagonals are OK) — work out which cells are which colour. Click on the puzzle you want to try at the right (or the caption below) to go to the page with all the instructions you'll need. These puzzles come from Simon Tatham's Portable Puzzle Collection and there are links there to apps for most devices. You can make puzzles of any size and difficulty level! |
 Easy puzzle (McBruce's time: 0min 45sec) |
 Medium puzzle (McBruce's time: 2min 40sec) |
 Tricky puzzle (McBruce's time: 5min 35sec) |