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 | 08:39:13 up 68 days, 14:49, 0 user, load average: 5.48, 5.40, 5.45