Kakuro for Beginners (Dover Math Games & Puzzles)

Lewis Carroll's Games and Puzzles (Dover Math Games & Puzzles)

Creative Brain Games Extreme Sudoku (Dover Math Games & Puzzles)

The Bogotá Puzzles (Dover Math Games & Puzzles)

100 Numerical Games (Dover Math Games & Puzzles)

One Hundred Problems in Elementary Mathematics (Dover Math Games & Puzzles)

Creative Brain Games Extreme Sudoku (Dover Math Games & Puzzles)

The Canterbury Puzzles (Dover Math Games & Puzzles)