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 | 14:58:26 up 66 days, 21:08, 0 user, load average: 5.23, 5.33, 5.26