Rechteck mit Löcher

degenerated
id = 32
time = 00:00:00.3
unique solutions = 0
using part
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 23:38:00 up 71 days, 5:48, 0 user, load average: 5.00, 5.02, 5.02