Logic Puzzle
Working title
Lives kept: 0
Play level 1
Main levels
Your levels
Level maker
Every level it makes has exactly one solution, can be solved without guessing, and is graded by the hardest logic it needs.
Difficulty
Easy
Medium
Hard
Expert
How many
1
3
5
Make levels
Level 1
Easy
One piece in every color, row, and column. Pieces can't touch, not even diagonally.
Hint
Undo
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