GridMew5×5 cat logic puzzles
Original puzzles, ready for a little quiet thinking.
This collection contains 80 original 5×5 boards. Each has 5 connected regions and needs 5 cats. The compact grid keeps a whole position easy to inspect; the reasoning still depends on candidates and region shape. 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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What to practice on a compact grid
A 5×5 board has only 25 cells, which makes it convenient to compare a candidate list with the whole position. Compact does not mean that the next cat is obvious. Some boards finish through singles; others require several exclusions before a placement appears.
Compare the two examples below before choosing a difficulty. They use the same quotas and adjacency rule, but ask you to notice different kinds of evidence.
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.
5×5 worked puzzles
- gm-5-0001 · Two possible cats, one shared exclusion
- gm-5-0002 · Let the fourth row settle the top edge
- gm-5-0003 · Keep several possibilities alive while locks accumulate
- gm-5-0004 · A short finish between three fixed cats
- gm-5-0005 · Use column locks before placing the first cat
- gm-5-0006 · Check the unused columns against the remaining rows
- gm-5-0007 · A one-cell region starts a column cascade
- gm-5-0008 · The bottom-left pair is not an equal choice
- gm-5-0009 · Use a middle-row single to separate the ends
- gm-5-0010 · Resolve the outside rows before the top centre
- gm-5-0011 · One right-edge cat completes two distant constraints
- gm-5-0012 · A column reservation unlocks a small top region
- gm-5-0013 · Three givens leave two independent row checks
- gm-5-0014 · A forced corner is only the beginning
- gm-5-0016 · Read the bottom-left region through the fixed column
- gm-5-0019 · Reserve the middle of column 4 indirectly
- gm-5-0029 · Clear the bottom row, then work upward
- gm-5-0032 · A wide lower region forces a narrow route upward
- gm-5-0034 · A singleton starts the board, a row scan carries it
- gm-5-0045 · Follow a forced cat up the left column