Rechteck mit Löcher

70.Problem
id = 165
status = timer expired
time = 00:30:00.2
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 20:36:08 up 73 days, 2:46, 2 users, load average: 5.15, 5.04, 5.08