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 | 18:55:19 up 68 days, 1:05, 1 user, load average: 5.57, 5.46, 5.32