Rechteck mit Löcher

great-puzzle
id = 86
status = timer expired
time = 00:00:15.3
unique solutions = 0
using part
animate    
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Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 19:05:55 up 66 days, 1:16, 0 user, load average: 7.26, 6.35, 5.83