From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Mon, 15 May 2017 12:25:44 +0000 (+0200)
Subject: Enable Knight PST in Crazyhouse
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=88a44e94cd7046d43777e93e96ba59f5c7615b9d;p=crazywa.git

Enable Knight PST in Crazyhouse

PST to encourage using Knights in attacks are enabled after move 10.
Enabling it earlier would make the engine move only Knights in the opening.
---

diff --git a/dropper.c b/dropper.c
index f8c0a96..b21690d 100644
--- a/dropper.c
+++ b/dropper.c
@@ -1645,6 +1645,7 @@ RootMakeMove(int move)
   MakeMove(&undoInfo, move);
   checkHist[moveNr+1] = checker;
   undoInfo.tpGain = e + undoInfo.newEval;
+  if(moveNr >= 19 && !perpLoses) PST[WHITE+1] = knightPST, PST[BLACK+1] = knightPST + 11;
   // store in game history hash table
   index = (unsigned int)undoInfo.newKey >> 24 ^ stm << 2; // uses high byte of low (= hands-free) key
   while(repKey[index] && (repKey[index] ^ (int)undoInfo.newKey) & 0x1FFFFF) index += 2; // find empty slot