Authors: K. Ken

  • Calcudoku – 200 Normal Puzzles 9×9 (Volume 10) — K. Ken

    Calcudoku – 200 Normal Puzzles 9×9 (Volume 10) — K. Ken

  • Calcudoku – 200 Easy Puzzles 9×9 (Volume 7) — K. Ken

    Calcudoku – 200 Easy Puzzles 9×9 (Volume 7) — K. Ken

  • Calcudoku – 200 Normal Puzzles 9×9 (Volume 6) — K Ken

    Calcudoku – 200 Normal Puzzles 9×9 (Volume 6) — K Ken

  • Calcudoku – 200 Easy to Master Puzzles 9×9 (Volume 8) — K. Ken

    Calcudoku – 200 Easy to Master Puzzles 9×9 (Volume 8) — K. Ken