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 | 07:35:37 up 68 days, 13:45, 0 user, load average: 6.24, 5.80, 5.62