Rechteck mit Löcher

22.Problem
id = 141
time = 00:00:00.4
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 14:00:26 up 74 days, 20:10, 3 users, load average: 4.74, 4.78, 4.75