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 | 10:14:39 up 69 days, 16:24, 0 user, load average: 4.95, 4.88, 4.84