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 | 07:58:19 up 75 days, 14:08, 0 user, load average: 4.50, 4.82, 4.87