Binaire puzzel van 6 augustus 2012
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0
1
0
1
0
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1
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0
0
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1
0
0
0
0
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1
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1
0
0
0
0
0
1
1
1
1
0
Meer heel moeilijke 12x12 puzzels
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0
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0
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1
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0
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0
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0
1
0
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0
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1
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1
1
0
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1
1
0
1
0
1
1
1
0
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1
1
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1
1
0
0