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 | 16:03:16 up 72 days, 22:13, 3 users, load average: 5.30, 5.35, 5.31