Rechteck mit Löcher

great-puzzle
id = 86
status = timer expired
time = 00:30:01.2
unique solutions = 0
using part
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 03:11:35 up 65 days, 9:21, 0 user, load average: 4.20, 4.35, 4.15