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 | 21:02:57 up 70 days, 3:13, 0 user, load average: 3.85, 3.74, 3.57