- 400 KAKURO 13 x 13 + 14 x 14 + 15 x 15 + 16 x 16 best puzzles + BONUS + surprise: Holmes presents to your attention the excellent, proven sudoku. Format 8.5 '' x 11 ''
- 400 CalcuDoku MEDIUM puzzles 9 x 9 + BONUS 250 classic sudoku: Sudoku medium puzzles and classic Sudoku 9x9 very hard levels
- Book Tridoku Sudoku. Hard Level.: 400+ Challenging Puzzles. Holmes Presents a Book for Productive Fitness to Your Brain. (Plus 250 Sudoku and 250 Puzzles That Can Be Printed).
- Tridoku Sudoku. Very hard level.: 400+ collection puzzles. Holmes presents a book for keeping the brain in excellent shape. (plus 250 sudoku and 250 ... that can be printed). (Tridoku logic puzzle)
- Adults puzzles book. 200 Kakuro and 200 killer Sudoku. Medium levels.: Kakuro + Sudoku killer logic puzzles 8x8.





























