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 | 18:54:13 up 70 days, 1:04, 0 user, load average: 3.67, 3.60, 3.60