Rechteck mit Löcher

degenerated
id = 32
time = 00:00:00.3
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 14:19:16 up 72 days, 20:29, 3 users, load average: 5.19, 4.86, 4.82