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 | 20:58:13 up 78 days, 3:08, 1 user, load average: 5.80, 5.40, 5.20