Rechteck mit Löcher

degenerated
id = 32
time = 00:00:00.3
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 06:54:59 up 76 days, 13:05, 0 user, load average: 4.56, 4.66, 4.77