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 | 18:12:09 up 73 days, 22 min, 1 user, load average: 5.17, 5.41, 5.20