Rechteck mit Löcher

degenerated
id = 32
time = 00:00:00.3
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 21:56:01 up 76 days, 4:06, 2 users, load average: 4.84, 5.14, 5.05