diff -r 57577c9af5d3 -r 53f714ac783d src/chess/pgn.c
--- a/src/chess/pgn.c	Fri May 15 12:18:34 2026 +0200
+++ b/src/chess/pgn.c	Tue May 19 17:59:24 2026 +0200
@@ -272,7 +272,7 @@
         /* reallocate move block buffer if needed */
         {
             size_t moveblksize = moveblkptr - moveblk;
-            if (moveblksize + 128 < moveblkcap) {
+            if (moveblksize + 128 > moveblkcap) {
                 moveblkcap *= 2;
                 char *newmoveblk = realloc(moveblk, moveblkcap);
                 if (newmoveblk == NULL) {