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 | 03:06:19 up 66 days, 9:16, 0 user, load average: 6.24, 5.90, 5.68