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 | 12:04:30 up 70 days, 18:14, 2 users, load average: 5.71, 5.26, 5.13