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 | 19:04:45 up 69 days, 1:15, 2 users, load average: 4.95, 4.70, 4.65