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 | 18:12:04 up 78 days, 22 min, 0 user, load average: 5.32, 5.00, 4.94