Rechteck mit Löcher

great-puzzle
id = 86
status = timer expired
time = 00:30:00.3
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 22:44:21 up 75 days, 4:54, 0 user, load average: 4.92, 4.89, 4.91