Shikaku Mixed Grids - Medium - Volume 3 - 159 Logic Puzzles
Shikaku Mixed Grids - Easy to Hard - Volume 1 - 156 Puzzles
Shikaku Mixed Grids Deluxe - Easy to Hard - Volume 5 - 255 Logic Puzzles
Shikaku Mixed Grids - Hard - Volume 4 - 159 Logic Puzzles
Shikaku Mixed Grids - Easy - Volume 2 - 159 Logic Puzzles
Daily CalcuDoku Puzzle Calendar 2015
Killer Sudoku 10x10 - Hard - Volume 10 - 267 Puzzles
CalcuDoku Mixed Grids Deluxe - Easy to Hard - Volume 6 - 468 Puzzles
CalcuDoku 9x9 Deluxe - Hard - Volume 13 - 468 Logic Puzzles
Killer Sudoku 12x12 - Easy - Volume 14 - 276 Puzzles
Huge Hashi 30x30 Deluxe - Volume 4 - 255 Logic Puzzles
Classic Sudoku 9x9 - Easy to Medium - Volume 62 - 276 Logic Puzzles
Mega Sudoku 16x16 Large Print - Easy to Extreme - Volume 34 - 276 Puzzles
Futoshiki Mixed Grids - Medium - Volume 3 - 276 Puzzles
Binary Puzzles 14x14 - Medium - Volume 9 - 276 Puzzles
Anti-Knight Sudoku 10x10 - Easy to Extreme - Volume 2 - 276 Puzzles
Classic Sudoku For Kids 9x9 - Easy to Extreme - Volume 8 - 145 Logic Puzzles
Sudoku 10x10 - Medium - Volume 10 - 276 Puzzles
Sudoku 10x10 Deluxe - Easy to Extreme - Volume 14 - 468 Puzzles
