8×8 cat logic puzzles

Original puzzles, ready for a little quiet thinking.

A cat stretching next to a small plant

This collection contains 80 original 8×8 boards. Each has 8 connected regions and needs 8 cats. The larger grid adds more candidates to scan, while keeping the same one-cat and no-touch rules. Size and difficulty are separate: all three reasoning groups are available in this collection.

Size
Difficulty

Difficulty reflects the reasoning, not just the board size.

80 puzzles

gm-8-0001: 8×8 regional boardCCAAAAAACCCBBBAACCCBBDDDCGGBBDDDFGGEGDDDFGGGGGGDFGGGGGHHFGGGGHHH

gm-8-0001

8×8 challenge

3 fixed cats. Original, unique solution.

gm-8-0002: 8×8 regional boardCBBBAAAACBBBDDAACCDDDDEECCCDDEEECCCCCEEECCCFEEEEHHHFFGGEHHHFFGGG

gm-8-0002

8×8 challenge

3 fixed cats. Original, unique solution.

gm-8-0003: 8×8 regional boardCCBEADDDCCBEEDDDCCCEEEDDCFCEEEEDFFFEEEEEFFFGEEEEFFGGGEEHFFGGGEHH

gm-8-0003

8×8 intro

2 fixed cats. Original, unique solution.

gm-8-0004: 8×8 regional boardAACCCCCCEECCCCDBEECCCDDBEEECCDDDEEECFDDDGGEFFDDDGGGFFHHDGGGFFHHD

gm-8-0004

8×8 intro

2 fixed cats. Original, unique solution.

gm-8-0005: 8×8 regional boardAAAEEEEDBBACEEEDBBCCEEEDEECEEDDDFEEEEDDDFFEEEGGHFFEEGGGHFFFEGGHH

gm-8-0005

8×8 challenge

2 fixed cats. Original, unique solution.

gm-8-0006: 8×8 regional boardAACBBBBBCCCBBBBBCCCBBEBEGCDDDEEEGGGEEEEEGGGGEFFEGGGGFFFHGGGGGGHH

gm-8-0006

8×8 intro

3 fixed cats. Original, unique solution.

gm-8-0007: 8×8 regional boardCCAAABBBCCADDBBBCCCDDDDBCCEDDDDBEEEEEDDDEFEEEDDDEEHHGGDDHHHHGGDD

gm-8-0007

8×8 intro

2 fixed cats. Original, unique solution.

gm-8-0008: 8×8 regional boardBBDDAAAABBDCAACCEDDCCCCCEDDCCCCCEEDDDDFFEDDDDFFFDDDDGGGFDDHHHHGG

gm-8-0008

8×8 challenge

2 fixed cats. Original, unique solution.

gm-8-0009: 8×8 regional boardBBBBAAAABBBBDCCEBBBDDDCEBBDDDGCEBBFDDGGEBBFGGGGEBFFGGGGEHFFGGGGG

gm-8-0009

8×8 challenge

2 fixed cats. Original, unique solution.

gm-8-0010: 8×8 regional boardCCCAABBBCCCACCBBDCCCCCCCDDDCEEEEDDGGEEEEDFGGGHHHFFFGGGHHFFFGGGHH

gm-8-0010

8×8 intro

3 fixed cats. Original, unique solution.

gm-8-0011: 8×8 regional boardAABBCCCCGBBFFCCCGGFFDDCCGGGFDDCCGGGFFCCEGGFFFCEEGGGFFHEHGGGFHHHH

gm-8-0011

8×8 intro

2 fixed cats. Original, unique solution.

gm-8-0012: 8×8 regional boardBBAAAAAABBCAACAADBCCCCAADDDCCCEEDDDDDCEEDDFFDCEEDGGFFFEEGGGFFHHH

gm-8-0012

8×8 challenge

2 fixed cats. Original, unique solution.

Puzzle collections by size

Learn from an original board

Sixty selected puzzles have a full walkthrough. The remaining boards can be played from this library without creating hundreds of near-identical index pages. Every published board passes the same connected-region, unique-solution and proof-replay checks.

Go to Learn · Read the validation method · Print a puzzle pack