Alexander Rodriguez

Puzzles for Brain - Suguru 400 Hard Puzzles 6x6 vol. 27 (Suguru, #27)

Puzzles for Brain - Suguru 400 Expert Puzzles 6x6 vol. 28 (Suguru, #28)

Puzzles for Brain - Jigsaw Sudoku 200 Easy to Medium Puzzles 10x10 vol. 15 (Jigsaw Sudoku, #15)

Puzzles for Brain - Jigsaw Sudoku 200 Hard to Expert Puzzles 10x10 vol. 16

Puzzles for Brain - Mini Jigsaw Sudoku 200 Expert Puzzles 6x6 vol. 14

Puzzles for Brain - Mini Jigsaw Sudoku 200 Medium Puzzles 6x6 vol. 12

Puzzles for Brain - Mini Jigsaw Sudoku 200 Hard Puzzles 6x6 vol. 13

Puzzles for Brain - Mini Jigsaw Sudoku 200 Easy Puzzles 6x6 vol. 11 (Mini Jigsaw Sudoku, #11)

Puzzles for Brain - Jigsaw Sudoku 200 Hard to Expert Puzzles 12x12 vol. 18

Puzzles for Brain - Jigsaw Sudoku 200 Easy to Medium Puzzles 12x12 vol. 17

Puzzles for Brain - Shikaku 200 Hard to Expert 12x12 vol. 10

Puzzles for Brain - Shikaku 200 Easy to Medium 13x13 vol. 11 (Shikaku, #11)

Puzzles for Brain - Cross Sudoku 200 Easy Puzzles vol. 1 (Cross Sudoku, #1)

Puzzles for Brain - Shikaku 200 Hard to Expert 13x13 vol. 12 (Shikaku, #12)

Puzzles for Brain - Shikaku 200 Easy to Medium 12x12 vol. 9

Puzzles for Brain - Shikaku 200 Hard to Expert 10x10 vol. 6

Puzzles for Brain - Cross Sudoku 200 Hard Puzzles vol. 3 (Cross Sudoku, #3)

Puzzles for Brain - Cross Sudoku 200 Expert Puzzles vol. 4 (Cross Sudoku, #4)

Puzzles for Brain - Shikaku 200 Hard to Expert 11x11 vol. 8

Puzzles for Brain - Shikaku 200 Easy to Medium 11x11 vol. 7

Puzzles for Brain - Cross Sudoku 200 Medium Puzzles vol. 2

Puzzles for Brain - Shikaku 200 Easy to Medium 10x10 vol. 5 (Shikaku, #5)

Puzzles for Brain - CalcuDoku 200 Easy to Medium Puzzles 7x7 vol. 28 (Calcudoku, #28)

Puzzles for Brain - CalcuDoku 200 Hard to Expert Puzzles 7x7 vol. 30 (Calcudoku, #30)