Index: aoc2025.c
==================================================================
--- aoc2025.c
+++ aoc2025.c
@@ -42,23 +42,21 @@
     return count;
 }
 
 void aoc202507(char *data, size_t len) {
     (void)len; // unused argument
-    struct RectangularMap rm[2] = {0};
-    while (*data) {                      // copy from data to rms
+    struct RectangularMap rm[1] = {0};
+    while (*data) {
         char *data2 = data;
         while (*data != '\n') data++;
         *data = 0; // erase newline
         RMaddline(rm + 0, data2);
-        RMaddline(rm + 1, data2); // set both rm's to the same thing
         *data++ = '\n'; // unerase newline (obviously!) and skip it
     }
     unsigned part1 = tachyon_splits(rm);
     printf("P1: %u\n", part1);
     RMfree(rm);
-    RMfree(rm + 1);
 }
 
 /* === aoc202506 =======================================================
 ===================================================================== */
 static long long unsigned add2506(long long unsigned v[4][1024], int lin, int col) {