Rechteck mit Löcher

great-puzzle
id = 86
status = timer expired
time = 00:30:00.3
unique solutions = 0
select solution
animate       
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 19:03:02 up 78 days, 1:13, 1 user, load average: 4.57, 4.87, 4.93