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 | 19:19:50 up 69 days, 1:30, 2 users, load average: 4.59, 4.54, 4.61