Earlier quoted context omitted.
Oddly enough, I found the 10x10 easier to solve then the 6x6 and the 8x8. After a couple play-throughs I think I know why. When trying to determine your next move, there's 3 options. 1. Look for a chance to play a block that wouldn't cause a chain of 3 colors together. 2. Look so see if the row or column has enough of a certain color in it. 3. Look to see if the row or column is a duplicate of another. 1 and 2 are ea…
Those three heuristics seem to work for the puzzles on the site, due to a limitation of the site's puzzle generator. However, there exist puzzles of this type which cannot be solved using only those three heuristics. Take this one, for instance: - O - - - - X - - O X - - - - - - - O - X - O - - - - - - O X - O - X - This puzzle has the unique solution shown below, but none of your three heuristics will make any progr…
O O X X O X
X X O O X O
O O X O X X
O X X O O X
X X O X O O
X O O X X O