Rechteck mit Löcher

degenerated
id = 32
time = 00:00:00.3
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 22:44:02 up 75 days, 4:54, 0 user, load average: 4.47, 4.82, 4.88