Zalka BooksPuzzles

Puzzles / Classic Sudoku

A daily dose
of logical thinking.

Classic 9×9 sudoku in four levels — from easy to very hard, in a steadily rising order. Four grids per page: a book for weeks on end.

See the books

The rules
in four sentences.

  1. The grid has 9 rows, 9 columns and 9 boxes of 3×3.
  2. Fill in the empty cells with the digits 1 to 9.
  3. Every row, every column and every 3×3 box must contain each digit exactly once.
  4. Every puzzle has one solution — reached by logic, without guessing.

Classic Sudoku

Books
in this series.

Set 200

300 Sudoku Puzzles

From easy to very hard — Set 200

Four grids per page and levels in a steadily rising order — weeks of solving in one book.

  • easy
  • medium
  • hard
  • very hard
Puzzles
300
Pages
132
Size
8.5 × 11 in

All solutions at the back of the book

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Try it
here.

Tap an empty cell and choose a digit. Every row, every column and every 3×3 box must contain the digits 1 to 9.

Tap a cell, then a digit. On a keyboard: arrow keys and digits 1–9.