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 | 17:26:04 up 65 days, 23:36, 0 user, load average: 5.27, 5.48, 5.31