1
1
Start with regions that occupy only one or two rows.
Tips
Seven practical solving tips
Use these patterns when the board looks open and the next move is hiding in plain sight.
2
2
After placing a cat, mark its full row, column, and neighboring ring immediately.
3
3
Count candidates by region, not just by row.
4
4
Two regions trapped inside the same two rows form a useful pair.
5
5
A narrow diagonal corridor often decides which side of a region is possible.
6
6
If a move produces no completion, undo and inspect the earliest assumption.
7
7
Use a logic hint before a reveal; the explanation preserves more of the solve.