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 | 22:20:33 up 76 days, 4:30, 2 users, load average: 5.31, 4.88, 4.89