diff --git a/2/solution.nix b/2/solution.nix
index b4e80dc..87a6c70 100644
--- a/2/solution.nix
+++ b/2/solution.nix
@@ -8,7 +8,7 @@ let
   # convert moves to numbers for opponent and player
   # Rock -> 0, Paper -> 1, Scissors 2
   mvId = c: m: (charToInt m) - (charToInt c);
-  convertMvId = pair: split pair (a: b: [(mvId "A" a) (mvId "X" b)] );
+  convertMvId = split (a: b: [(mvId "A" a) (mvId "X" b)] );
 
   # scoring matches
   isWin = a: b: (mod (a+1) 3) == b;
@@ -18,7 +18,7 @@ let
     (if isWin a b then 6
     else if isTie a b then 3
     else 0); # loss
-  totalScore = m: sum (map (pair: split pair getScore) m);
+  totalScore = m: sum (map (split getScore) m);
 
   # part 2
   mkDraw = a: a;
@@ -28,7 +28,7 @@ let
     if b == 0 then mkLoss a
     else if b == 1 then mkDraw a
     else mkWin a;
-  makeBestMoves = map (pair: split pair (a: b: [a (bestMove a b)] ));
+  makeBestMoves = map (split (a: b: [a (bestMove a b)] ));
 in {
   part1 = totalScore matches;
   part2 = totalScore (makeBestMoves matches);