Cats & Dogs #21: 6x6 Grid Puzzle (Easy)

easy

Tap a square: 🐱 cat → 🐶 dog → clear

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🐱 3 cats and 🐶 3 dogs in every row and column = same   × different

A 6x6 logic grid: 3 cats and 3 dogs in every row and column, no three of a kind in a row, and a few = and × clues to point the way.

  • Exactly 3 cats and 3 dogs in every row and every column.
  • Never three of the same animal in a row, across or down.
  • An = between two squares means the same animal; a × means different animals.

Step-by-step solution

Squares are written as R<row>C<column>, counting from the top-left.

  1. The × clue between R3C4 and R2C4 means they are different. R3C4 is a cat, so R2C4 is a dog.
  2. The = clue between R2C4 and R2C5 means they are the same. R2C4 is a dog, so R2C5 is a dog.
  3. R2C4 and R2C5 are both dogs, so R2C3 must be a cat (no three in a row).
  4. R2C4 and R2C5 are both dogs, so R2C6 must be a cat (no three in a row).
  5. R3C2 and R3C4 are both cats with one square between them, so R3C3 must be a dog.
  6. R3C4 and R3C6 are both cats with one square between them, so R3C5 must be a dog.
  7. R3C3 and R4C3 are both dogs, so R5C3 must be a cat (no three in a row).
  8. The × clue between R5C3 and R6C3 means they are different. R5C3 is a cat, so R6C3 is a dog.
  9. R6C1 and R6C3 are both dogs with one square between them, so R6C2 must be a cat.
  10. R2C5 and R3C5 are both dogs, so R1C5 must be a cat (no three in a row).
  11. R2C5 and R3C5 are both dogs, so R4C5 must be a cat (no three in a row).
  12. R2C6 and R3C6 are both cats, so R1C6 must be a dog (no three in a row).
  13. R2C6 and R3C6 are both cats, so R4C6 must be a dog (no three in a row).
  14. The × clue between R4C6 and R5C6 means they are different. R4C6 is a dog, so R5C6 is a cat.
  15. Row 2 already has its 3 dogs, so R2C2 must be cats.
  16. R2C2 and R3C2 are both cats, so R1C2 must be a dog (no three in a row).
  17. R2C2 and R3C2 are both cats, so R4C2 must be a dog (no three in a row).
  18. R4C2 and R4C3 are both dogs, so R4C1 must be a cat (no three in a row).
  19. R4C2 and R4C3 are both dogs, so R4C4 must be a cat (no three in a row).
  20. R3C4 and R4C4 are both cats, so R5C4 must be a dog (no three in a row).
  21. Row 3 already has its 3 cats, so R3C1 must be dogs.
  22. R2C1 and R3C1 are both dogs, so R1C1 must be a cat (no three in a row).
  23. Column 1 already has its 3 dogs, so R5C1 must be cats.
  24. R5C1 and R5C3 are both cats with one square between them, so R5C2 must be a dog.
  25. Row 5 already has its 3 cats, so R5C5 must be dogs.
  26. Column 3 already has its 3 dogs, so R1C3 must be cats.
  27. R1C3 and R1C5 are both cats with one square between them, so R1C4 must be a dog.
  28. Column 4 already has its 3 dogs, so R6C4 must be cats.
  29. Column 5 already has its 3 dogs, so R6C5 must be cats.
  30. R6C4 and R6C5 are both cats, so R6C6 must be a dog (no three in a row).

About this puzzle

This 6×6 grid starts with 6 filled squares and 4 = / × clues. It can be solved in 30 steps using pairs, gaps, counts and clues.

Count as you go. Once a row or column has all of one animal, every remaining empty square in it must be the other.

Every puzzle on this site has exactly one solution that can be reached by deduction. If you are guessing, look again at the rows and columns that are nearly full.

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