Alexander Rodriguez

Yajilin Puzzles - 8x8 200 vol. 1 (Yajilin Puzzles, #1)

Straights Puzzles - Easy 200 vol. 1 (Straights Puzzles, #1)

Straights Puzzles - Medium 200 vol. 2 (Straights Puzzles, #2)

Numbricks Puzzles - Easy to Expert 400 vol. 5 (Numbricks Puzzles, #5)

Straights Puzzles - Expert 200 vol. 4 (Straights Puzzles, #4)

Killer Sudoku Puzzles - Easy to Expert 400 vol. 9 (Killer Sudoku, #9)

Straights Puzzles - Hard 200 vol. 3 (Straights Puzzles, #3)

Yajilin Puzzles - 9x9 200 vol. 2 (Yajilin Puzzles, #2)

Numbricks Puzzles - Expert 200 vol. 4

Numbricks Puzzles - Easy 200 vol. 1 (Numbricks Puzzles, #1)

Binary Puzzles - Hard 200 vol. 3 (Binary Puzzles, #3)

Numbricks Puzzles - Hard 200 vol. 3 (Numbricks Puzzles, #3)

Binary Puzzles - Expert 200 vol. 4 (Binary Puzzles, #4)

Numbricks Puzzles - Medium 200 vol. 2 (Numbricks Puzzles, #2)

Binary Puzzles - Medium 200 vol. 2 (Binary Puzzles, #2)

Binary Puzzles - Easy 200 vol. 1 (Binary Puzzles, #1)

Sujikai Sudoku Puzzles - Expert 200 vol. 4 (Sujikai Sudoku, #4)

Sudoku Puzzles - Easy to Expert 400 vol. 5 (Sudoku Puzzles, #5)

Calcudoku Puzzles - Easy to Expert 400 vol. 1 (Calcudoku Puzzles, #1)

Sujikai Sudoku Puzzles - Medium 200 vol. 2 (Sujikai Sudoku, #2)

Sujikai Sudoku Puzzles - Hard 200 vol. 3

Killer Sudoku 10x10 Puzzles - Easy 200 vol. 5 (Killer Sudoku 10x10, #5)

Mega Killer Sudoku Puzzles - Expert 200 vol. 4 (Mega Killer Sudoku, #4)

Killer Sudoku 10x10 Puzzles - Hard 200 vol. 7 (Killer Sudoku 10x10, #7)