# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1785574719 -7200
# Node ID 3e27c99ed721c513b6000ce1798c3d9632680073
# Parent  c19d8523b31c3c4030617408f33035b0efd38e69
fix regression: missing promotion when simulating threats

diff -r c19d8523b31c -r 3e27c99ed721 src/chess/rules.c
--- a/src/chess/rules.c	Sat Aug 01 10:53:44 2026 +0200
+++ b/src/chess/rules.c	Sat Aug 01 10:58:39 2026 +0200
@@ -695,6 +695,10 @@
                 candidates[ccount].torow = row;
                 candidates[ccount].tofile = file;
                 candidates[ccount].capture = true;
+                if (piece_type(p) == PAWN && (row == 0 || row == 7)) {
+                    /* the exact piece for promotion does not matter */
+                    candidates[ccount].promotion = mkpiece(QUEEN, color);
+                }
                 ccount++;
             }
         }