diff -r 4d3d398ba689 -r 47162a7621da src/chess/rules.c
--- a/src/chess/rules.c	Wed Apr 16 20:32:25 2014 +0200
+++ b/src/chess/rules.c	Wed Apr 16 21:16:05 2014 +0200
@@ -48,17 +48,20 @@
     elem->next = NULL;
     elem->move = *move;
     
-    gettimeofday(&(elem->move.timestamp), NULL);
+    struct timeval curtimestamp;
+    gettimeofday(&curtimestamp, NULL);
+    elem->move.timestamp.tv_sec = curtimestamp.tv_sec;
+    elem->move.timestamp.tv_usec = curtimestamp.tv_usec;
     
     if (gamestate->lastmove) {
-        struct timeval *lasttstamp = &(gamestate->lastmove->move.timestamp);
-        time_t sec = elem->move.timestamp.tv_sec - lasttstamp->tv_sec;
+        struct movetimeval *lasttstamp = &(gamestate->lastmove->move.timestamp);
+        uint64_t sec = curtimestamp.tv_sec - lasttstamp->tv_sec;
         suseconds_t micros;
-        if (elem->move.timestamp.tv_usec < lasttstamp->tv_usec) {
-            micros = 1e6L-(lasttstamp->tv_usec - elem->move.timestamp.tv_usec);
+        if (curtimestamp.tv_usec < lasttstamp->tv_usec) {
+            micros = 1e6L-(lasttstamp->tv_usec - curtimestamp.tv_usec);
             sec--;
         } else {
-            micros = elem->move.timestamp.tv_usec - lasttstamp->tv_usec;
+            micros = curtimestamp.tv_usec - lasttstamp->tv_usec;
         }
         
         elem->move.movetime.tv_sec = sec;
@@ -559,7 +562,7 @@
         while (movelist) {
             time += gameinfo->addtime;
             
-            struct timeval *movetime = &(movelist->move.movetime);
+            struct movetimeval *movetime = &(movelist->move.movetime);
             if (movetime->tv_sec >= time) {
                 return 0;
             }
@@ -573,7 +576,7 @@
         time_t sec;
         movelist = gamestate->lastmove;
         if ((movelist->move.piece & COLOR_MASK) != color) {
-            struct timeval *lastmovetstamp = &(movelist->move.timestamp);
+            struct movetimeval *lastmovetstamp = &(movelist->move.timestamp);
             struct timeval currenttstamp;
             gettimeofday(&currenttstamp, NULL);
             micros += currenttstamp.tv_usec - lastmovetstamp->tv_usec;