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 | 13:09:08 up 70 days, 19:19, 2 users, load average: 3.50, 3.69, 3.82