Rechteck mit Löcher

22.Problem
id = 141
time = 00:00:00.3
unique solutions = 0
using part
animate    
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Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 18:52:17 up 66 days, 1:02, 0 user, load average: 5.48, 5.45, 5.34