diff -r 39aa77b7188b -r 93c81539b702 src/chess/rules.h
--- a/src/chess/rules.h	Sun Aug 23 11:38:27 2026 +0200
+++ b/src/chess/rules.h	Sun Aug 23 12:19:05 2026 +0200
@@ -106,14 +106,14 @@
 } Move;
 
 typedef struct {
-    uint8_t servercolor;
-    /** 1: play with timecontrol, 0: play without time control */
-    uint8_t timecontrol;
-    /** If timecontrol is 1, initial clock time in seconds */
+    Color servercolor;
+    /** play with timecontrol? */
+    bool timecontrol;
+    /** If timecontrol is true, initial clock time in seconds */
     uint16_t time;
-    /** If timecontrol is 1, time added per move in seconds */
+    /** If timecontrol is true, time added per move in seconds */
     uint16_t addtime;
-    /** If timecontrol is 1, delay before the clock starts ticking down */
+    /** If timecontrol is true, delay before the clock starts ticking down */
     uint16_t delay;
 } GameInfo;