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 | 05:18:21 up 68 days, 11:28, 0 user, load average: 6.22, 5.66, 5.49