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science_man_88

king

science_man_88
Dec 23rd, 2016
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  1. king(x)=select(r->(abs(r[1]-x[1])<2 && abs(r[2]-x[2])<2) && [r[1],r[2]]!=[x[1],x[2]],setbinop((x,y)->concat(x,y),[1,2,3,4,5,6,7,8],[1,2,3,4,5,6,7,8]))
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