Rechteck mit Löcher

22.Problem
id = 141
time = 00:00:00.4
unique solutions = 0
using part
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 18:15:36 up 71 days, 25 min, 2 users, load average: 4.48, 4.28, 4.12