diff --git a/src/aoc2023/Day04.kt b/src/aoc2023/Day04.kt
index 372a72f..58db81c 100644
--- a/src/aoc2023/Day04.kt
+++ b/src/aoc2023/Day04.kt
@@ -56,16 +56,6 @@ Card 6: 31 18 13 56 72 | 74 77 10 23 35 67 36 11
         }.sumOf { it!! }
     }
 
-    fun rec(winTable: List<Int>, pos: Int): Int {
-        var sum = winTable[pos]
-        if (sum > 0) {
-            for (j in pos + 1..(pos + sum).coerceAtMost(winTable.lastIndex)) {
-                sum += rec(winTable, pos)
-            }
-        }
-        return sum
-    }
-
     fun part2(input: List<String>): Int {
         val winTable = input.map {
             "Card +(\\d+): (.*)".toRegex().matchEntire(it)?.destructured