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The Letter Diamond Oneli by Karl Prosser 8 years ago (modification of post by Joel Bennett view diff)
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@CAMurphy A slightly more elegant PowerShell version for his challenge
-Refactored Jaykuls down to a 1 liner, but couldn’t get it smaller than a twitter message length

  1. &{Param([char]$l)$s=66;$z=[int]$l;$o=$z-$s+ 5;$p=-1;$n=&{"$(" "*$o)A";([string[]][char[]]($s..$z))|%{$p+=2;$o--;"$(" "*$o)$_$(" "*$p)$_"}};$n;$n[$($n.Length-2)..0]}L

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