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 | 10:14:56 up 67 days, 16:25, 1 user, load average: 6.24, 5.54, 5.32