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 | 16:02:56 up 66 days, 22:13, 0 user, load average: 5.32, 5.36, 5.35