MeowTrail Tips & Strategy

Beginner Tips

1. Start with 4-cells — A black cell with "4" means all 4 neighbors must have bulbs. Place them immediately.
2. Start with 0-cells — A "0" means none of its neighbors can have bulbs. Mark them as blocked.
3. Work from corners — Corner cells can only be lit from two directions, making them easier to reason about.
4. Mark X for impossible spots — If placing a bulb would violate a number constraint, mark that cell as empty.

Intermediate Techniques

1. Line-of-sight elimination — If a bulb is placed, no other bulb can be in its row/column until a black cell.
2. Counting remaining neighbors — If a "3" cell has 2 neighbors already blocked, the remaining 2 must both have bulbs.
3. Cross-hatching — Use the intersection of row and column constraints to narrow down bulb positions.

Advanced Strategies

1. Chain reasoning — Placing one bulb forces or eliminates others. Follow the chain until contradiction or solution.
2. Parity checks — Some grid sections have forced patterns based on available cells vs. required bulbs.
3. Hypothetical reasoning — If placing a bulb at position X leads to a contradiction, X must be empty.