Logic Grid

• Patterns
• Placement

Cross-reference categories with × and ✓ until only the unique combination compatible with every clue remains.

1. Each item in one category corresponds to exactly one item in every other category.
2. Read the clues and mark an impossible relationship with × or a confirmed relationship with ✓.
3. A ✓ automatically eliminates incompatible options in its row and column, and confirmations propagate between categories.
4. Solve every correspondence and press Check when the solution table is complete.

• A confirmed relationship excludes alternatives across categories; propagate each ✓ before reading a new clue.
• Start with clues that directly confirm or reject a relationship.
• Mark clues as used so you can separate exhausted clues from those that still contain information.
• Confirming a relationship automatically eliminates the other options in its row and column.
• Matrices are shown together on desktop and stacked on mobile to preserve context.
• If a mark makes all clues impossible to satisfy, the game warns you before you build on the contradiction.

We do not yet have a sufficiently verified account of this game’s origins. Rather than guess, we avoid attributing a date or creator without reliable evidence.

• Start with clues that directly confirm or reject a relationship.
• Mark clues as used so you can separate exhausted clues from those that still contain information.
• Confirming a relationship automatically eliminates the other options in its row and column.
• Matrices are shown together on desktop and stacked on mobile to preserve context.
• If a mark makes all clues impossible to satisfy, the game warns you before you build on the contradiction.

• Where should I begin? A confirmed relationship excludes alternatives across categories; propagate each ✓ before reading a new clue.
• What makes this game different? Solve every correspondence and press Check when the solution table is complete.