Puyo Puyo by murky-satyr

gets p
(1while(sub /\A(.*)!/,'\1 ';sub! /(.)(.{8})!/m,'!\2\1');$.+=1)while"#$_".scan(/\w/){h={};(f=proc{|i|h[i]||$&!=$_[i,1]?h:(f[h[i]=i-1];f[i+9];f[i+1])})[$`.size].size>3&&h.map{|j,|$_[j]=?!}}&&/!/
puts"#$_
#{$.-1} chains"

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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