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 | 17:26:50 up 66 days, 23:37, 0 user, load average: 5.49, 5.45, 5.47