Sudoku Kuromasu - 200 Hard to Master Puzzles 10x10 (Volume 10) by Dart Veider (E
15,37 €
Kuromasu (from Japanese "kuromasu wa doko da", literally "Where is Black Cells?". ; also known as "Kurodoko") is played on a rectangular grid. Each cell may be either black or white. by Dart Veider.
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