Rechteck mit Löcher

great-puzzle
id = 86
status = timer expired
time = 00:30:01.2
unique solutions = 0
using part
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 01:50:44 up 65 days, 8:01, 0 user, load average: 4.96, 4.60, 4.30