Well, a Nurikabe variation actually. The two squares with crosses must be of different colours.
This is a punishing puzzle, with no pleasant path to solution. So, why publish? Because I can use it to win an argument with a friend.
Count Different Arrows Sudoku by Bill Murphy
-
(This post is part of the Genuinely Approachable Sudoku (GAS) series.) This
variant, posted initially during our first few weeks of GAS puzzles, comes
ba...
7 hours ago