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 | 07:09:25 up 69 days, 13:19, 0 user, load average: 4.30, 4.72, 4.84