Alexander Rodriguez

Puzzles fo Brain - Suguru 400 Easy to Expert Puzzles 5x5 vol. 23

Puzzles for Brain Straights - 200 Easy to Medium 9x9 vol. 9

Mini Sudoku Puzzles - 400 Expert 6x6 vol. 8

Mini Sudoku Puzzles - 400 Easy 6x6 vol. 5 (Mini Sudoku, #5)

Mini Sudoku Puzzles - 400 Medium 6x6 vol. 6

Mini Sudoku Puzzles - 400 Hard 6x6 vol. 7

Puzzles for Brain Numbricks - 200 Easy to Expert Puzzles 9x9 vol. 14

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

Puzzles for Brain Numbricks - 200 Hard to Expert Puzzles 9x9 vol. 13 (Numbricks, #13)

Puzzles for Brain Numbricks - 200 Easy to Medium Puzzles 9x9 vol. 12 (Numbricks, #12)

Puzzles for Brain Numbricks - 200 Easy to Medium Puzzles 10x10 vol. 15

Sudoku X Puzzles - 200 Easy 16x16 vol.11 (Sudoku X Puzzles, #11)

Sudoku X Puzzles - 200 Expert 16x16 vol.14

Sudoku X Puzzles - 200 Hard 16x16 vol.13 (Sudoku X Puzzles, #13)

Sudoku X Puzzles - 200 Easy to Medium 16x16 vol.15 (Sudoku X Puzzles, #15)

Sudoku X Puzzles - 200 Hard to Expert 16x16 vol.16

Sudoku X Puzzles - 200 Medium 16x16 vol.12

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

Puzzles for Brain Slitherlink - 200 Easy to Medium 12x12 vol. 7 (Slitherlink, #7)

Puzzles for Brain Slitherlink - 200 Easy to Medium 25x25 vol. 9 (Slitherlink, #9)

Puzzles for Brain Slitherlink - 200 Hard to Expert 12x12 vol. 8 (Slitherlink, #8)

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

Puzzles for Brain Slitherlink - 200 Hard to Expert 25x25 vol. 10

Puzzles for Brain Skyscrapers - 200 Easy to Medium 9x9 vol. 4 (Skyscrapers, #4)