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 | 01:31:08 up 70 days, 7:41, 0 user, load average: 4.97, 4.08, 3.72