Quadrat mit Löcher

10.Problem
id = 131
time = 00:00:00.5
unique solutions = 0
animate       
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 09:32:18 up 79 days, 15:42, 1 user, load average: 5.19, 5.19, 5.15