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 | 06:01:47 up 69 days, 12:12, 0 user, load average: 5.98, 5.31, 5.05