minor fix in ch-2

1 files changed, 2 insertions, 2 deletions

diff --git a/challenge-062/sangeet-kar/raku/ch-2.raku b/challenge-062/sangeet-kar/raku/ch-2.raku
index 4a124254fb..3d973dab62 100755
--- a/challenge-062/sangeet-kar/raku/ch-2.raku
+++ b/challenge-062/sangeet-kar/raku/ch-2.raku
@@ -16,12 +16,11 @@ sub place-queen(@indices, @queens, @solutions) {
 
 
 sub is-available($ref, $pos) {
-        my ($refx, $refy, $refz) = $ref;
-        my ($x, $y, $z)          = $pos;
         my $diff = ($ref »-« $pos)».abs.Set;
         not (+$diff == 1 || (+$diff == 2 && 0 ∈ $diff))
 }
 
+
 sub indices-to-array(@indices, $n) {
     my @array = [[[ 0 xx $n] xx $n] xx $n];
     for @indices -> ($x, $y, $z) {
@@ -30,6 +29,7 @@ sub indices-to-array(@indices, $n) {
     return @array;
 }
 
+
 sub MAIN (Int :$n=2) {
         say n-queens-threeD $n;
 }