Rechteck doppelt

5*5 5*5 (25.Problem)
id = 144
time = 00:00:00.3
unique solutions = 0
using part
animate    
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Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 17:38:19 up 70 days, 23:48, 2 users, load average: 4.37, 4.40, 4.31