Rechteck mit Löcher

degenerated
id = 32
time = 00:00:00.3
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 05:43:57 up 75 days, 11:54, 0 user, load average: 4.57, 4.68, 4.81