How to play
- Every row item matches exactly one item in each other category, and no item is used twice.
- Click a square to mark ✕ (not a match), click again for ✓ (a match), and again to clear. Right-click goes backwards.
- With Auto-✕ on, a ✓ crosses out the rest of its row and column in that block.
- Clues are all true. Click a clue to strike it off once you've used it.
- Look across blocks: if A is B and B is C, then A is C. If A is B and B is not C, then A is not C.
Paused. Press Resume to carry on.