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Everyone knows the problem of 8 queens on a chessboard, In the puzzle is a booklet with all the assignments. But I also came up with my own assignments. Material plastic.
1. Make lines with 2 DOTS. Horizontal, vertical or diagonal. I found 32 lines
2. Do this also for 3 DOTS. 13 lines found.
3. Do this also for 4 DOTS. 8 lines found.
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