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 | 01:55:12 up 67 days, 8:05, 0 user, load average: 6.55, 6.08, 5.68