HHyper Sudoku X ●●●●Hyper Sudoku X ●●●●de Peter RitmeesterEdiciones (1)Hyper Sudoku X ●●●● (2019)Independently Published · inglés · ISBN 9781687126221Más obras de Peter RitmeesterPPocket Posh Sixy Sudoku HardPocket Posh Sixy Sudoku HardPocket Posh Sixy Sudoku Easy to MediumNNew York Times Pocket Posh Brain Games Vol. 2New York Times Pocket Posh Brain Games Vol. 2