The Times Samurai Su Doku 4: 100 Challenging Puzzles from the Times by The Times
19,96 €
10 Super difficultEven the speediest of Su Doku solvers will be agonising over these ultra-complex, extended brain-teasers. This is Su Doku multiplied: every column, row and 3x3 box must contain the digits 1 to 9.
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