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ClueBot NG (talk | contribs) m Reverting possible vandalism by Updatr88 to version by Kuru. Report False Positive? Thanks, ClueBot NG. (4183790) (Bot) |
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A classic puzzle of the second kind is to arrange all twelve [[pentomino]]es into rectangles sized 3×20, 4×15, 5×12 or 6×10.
==Packing of irregular objects==
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