Rechteck mit Löcher

degenerated
id = 32
time = 00:00:00.3
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 16:59:58 up 75 days, 23:10, 0 user, load average: 4.47, 4.65, 4.82