Rechteck mit Löcher

22.Problem
id = 141
time = 00:00:00.4
unique solutions = 0
select solution
animate       
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 18:23:49 up 78 days, 34 min, 0 user, load average: 5.12, 5.24, 5.12