Rechteck mit Löcher

22.Problem
id = 141
time = 00:00:00.3
unique solutions = 0
using part
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 11:04:51 up 67 days, 17:15, 1 user, load average: 4.48, 5.19, 5.44