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A truly difficult problem: How does the semicircular parts of the moon form a smooth
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Aber immer wieder "hakt" es an ein und derselben Stelle
squares of the same color (see task 1) and at the same time
horizontally or diagonally - 2 squares
Gravity Lock A truly difficult problem: HowHow can this trick lock be opened? Simple scientific knowledge could be helpful. Dimensions: 13. 5 x 10 x 1. 5 cm Difficulty level: 4 out of 7
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US$ 12.90
US$ 11.90
US$ 29.90
