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 | 02:28:32 up 72 days, 8:38, 0 user, load average: 5.61, 5.59, 5.54