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 | 07:08:25 up 76 days, 13:18, 0 user, load average: 4.49, 4.79, 4.83