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 | 20:53:35 up 71 days, 3:03, 2 users, load average: 5.07, 5.04, 5.12