Rechteck doppelt

5*5 5*5 (25.Problem)
id = 144
time = 00:00:00.3
unique solutions = 0
select not used parts

animate    
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Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 03:45:28 up 75 days, 9:55, 0 user, load average: 4.53, 4.57, 4.76