Series:

Calcudoku

16 primary works

Book 18

Cover of Puzzles for Brain CalcuDoku - 200 Easy 8x8 vol. 18

Book 20

Cover of Puzzles for Brain CalcuDoku - 200 Hard 8x8 vol. 20

Book 22

Cover of Puzzles for Brain CalcuDoku - 200 Easy to Medium 8x8 vol. 22

Book 23

Cover of Puzzles for Brain CalcuDoku - 200 Hard to Expert 8x8 vol. 23

Book 28

Cover of Puzzles for Brain - CalcuDoku 200 Easy to Medium Puzzles 7x7 vol. 28

Book 29

Cover of Puzzles for Brain - CalcuDoku 200 Medium to Hard Puzzles 7x7 vol. 29

Book 30

Cover of Puzzles for Brain - CalcuDoku 200 Hard to Expert Puzzles 7x7 vol. 30

Book 32

Cover of Puzzles for Brain - CalcuDoku 200 Easy to Expert Puzzles 6x6 (volume 32)

Book 33

Cover of Puzzles for Brain - CalcuDoku 200 Easy to Expert Puzzles 7x7 (volume 33)

Book 34

Cover of Puzzles for Brain - CalcuDoku 200 Easy to Expert Puzzles 8x8 (volume 34)

Book 35

Cover of Puzzles for Brain - CalcuDoku 200 Easy to Medium Puzzles 5x5 (volume 35)

Book 36

Cover of Puzzles for Brain - CalcuDoku 200 Hard to Expert Puzzles 5x5 (volume 36)

Book 37

Cover of Puzzles for Brain - CalcuDoku 200 Easy to Medium Puzzles 6x6 (volume 37)

Book 38

Cover of Puzzles for Brain - CalcuDoku 200 Hard to Expert Puzzles 6x6 (volume 38)

Book 39

Cover of Puzzles for Brain - CalcuDoku 200 Easy to Medium Puzzles 8x8 (volume 39)

Book 40

Cover of Puzzles for Brain - CalcuDoku 200 Hard to Expert Puzzles 8x8 (volume 40)