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 | 18:21:01 up 72 days, 31 min, 0 user, load average: 5.76, 5.37, 5.06