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 | 05:33:47 up 69 days, 11:44, 0 user, load average: 5.57, 5.26, 5.16