Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
This is the ultimate challenge.Sudoku Grandmaster Challenge is for experienced solvers who wantthe toughest puzzles and the deepest sense of accomplishment.Inside:✔ 200 of the hardest Sudoku puzzles✔ Complex logic that rewards expert skill✔ Clean layouts for serious solving✔ Solutions includedPerfect for:• Elite Sudoku players• Hardcore logic puzzle fans• Anyone seeking the highest level of mental challengeThe final level of the Sudoku Skill Builder Series