Rechteck mit Löcher

degenerated
id = 32
time = 00:00:00.3
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 11:31:35 up 76 days, 17:41, 0 user, load average: 5.44, 5.16, 5.03