GridMew8×8 cat logic puzzles
Original puzzles, ready for a little quiet thinking.
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.
Difficulty reflects the reasoning, not just the board size.
80 puzzles
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Organize the scan, not just the number of cells
With 64 cells, an 8×8 board asks for more careful bookkeeping. Work through one group at a time, update exclusions after a placement and return to affected groups. The rule still concerns immediate neighbors, not entire diagonals.
Choose Intro if you want to practice a larger scan with a singles-based route. Choose Challenge when you want candidate locks or common-neighbor reasoning; the larger dimension alone does not establish that distinction.
Puzzle collections by size
Learn from an original board
Explore sixty original boards with complete, diagrammed reasoning. Try a puzzle first, then use its walkthrough to check a deduction or understand a new technique. Every board passes connected-region, unique-solution and proof-replay checks.
Go to Learn · Read the validation method · Print a puzzle pack
Browse by reasoning
Choose the kind of deductions you want to practice, independently of grid size.
Original puzzle walkthroughs
Each guide has its own starting board, verified deductions and an answer you can choose to reveal.
8×8 worked puzzles
- gm-8-0001 · Combine a reserved row with its shared neighbors
- gm-8-0002 · Let a lower row reserve the right-hand region
- gm-8-0003 · A singleton turns a large board into a sequence of singles
- gm-8-0004 · An upper-left region leads to a distant column single
- gm-8-0005 · A full column reservation starts four linked locks
- gm-8-0006 · Read the lower singles before returning to the top
- gm-8-0007 · A one-cell region sends information across the board
- gm-8-0008 · Use two row locks at different stages of the solve
- gm-8-0009 · Successive column reservations cross the upper half
- gm-8-0010 · Two small top regions simplify a crowded grid
- gm-8-0011 · A column-first route reaches the lower-right regions
- gm-8-0012 · Separate a regional reservation from a neighbor exclusion
- gm-8-0013 · A narrow middle region sets the upper rows free
- gm-8-0030 · Two singleton regions steer a seven-placement finish
- gm-8-0052 · A forced left edge makes the central column readable
- gm-8-0053 · Walk the narrow right-side regions before scanning rows
- gm-8-0054 · A corner singleton starts an upper-to-lower staircase
- gm-8-0055 · Two singletons release the bottom-right region
- gm-8-0056 · A bottom singleton sends the solve back upward
- gm-8-0057 · A central singleton prepares an upper-left anchor