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 | 16:14:54 up 71 days, 22:25, 0 user, load average: 5.64, 5.26, 5.01