From 7acda4827d71abe83c305b75cdf4ab33095ef2d2 Mon Sep 17 00:00:00 2001 From: H.G.Muller Date: Thu, 3 Apr 2014 20:51:13 +0200 Subject: [PATCH] Implement option for using Okazaki rule With this rule counterstrike against an unprotected Lion is allowed. --- hachu.c | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-) diff --git a/hachu.c b/hachu.c index 3bffac4..6d3e17f 100644 --- a/hachu.c +++ b/hachu.c @@ -140,7 +140,8 @@ typedef struct { } UndoInfo; char *array, fenArray[4000], startPos[4000], *reason, checkStack[300]; -int bWidth, bHeight, bsize, zone, currentVariant, chuFlag, tenFlag, chessFlag, repDraws, stalemate, tsume, pvCuts, allowRep, entryProm, pVal; +int bWidth, bHeight, bsize, zone, currentVariant, chuFlag, tenFlag, chessFlag, repDraws, stalemate; +int tsume, pvCuts, allowRep, entryProm, okazaki, pVal; int stm, xstm, hashKeyH=1, hashKeyL=1, framePtr, msp, nonCapts, rootEval, filling, promoDelta; int retMSP, retFirst, retDep, pvPtr, level, cnt50, mobilityScore; int ll, lr, ul, ur; // corner squares @@ -1963,7 +1964,9 @@ MapFromScratch(attacks); // for as long as incremental update does not work. if(dist[tb.from-tb.to] != 1 && attacks[2*tb.to + stm] && p[tb.epVictim[0]].value <= 50) score = -INF; // our Lion is indeed made vulnerable and can be recaptured } else { // other x Ln - if(promoSuppress & PROMOTE) score = -INF; // non-Lion captures Lion after opponent did same + if(promoSuppress & PROMOTE) { // non-Lion captures Lion after opponent did same + if(!okazaki || attacks[2*tb.to + stm]) score = -INF; + } defer |= PROMOTE; // if we started, flag he cannot do it in reply } if(score == -INF) { @@ -2642,6 +2645,7 @@ pboard(board); printf("feature option=\"Full analysis PV -check 1\"\n"); // example of an engine-defined option printf("feature option=\"Allow repeats -check 0\"\n"); printf("feature option=\"Promote on entry -check 0\"\n"); + printf("feature option=\"Okazaki rule -check 0\"\n"); printf("feature option=\"Resign -check 0\"\n"); // printf("feature option=\"Contempt -spin 0 -200 200\"\n"); // and another one printf("feature option=\"Tsume -combo no /// Sente mates /// Gote mates\"\n"); @@ -2653,6 +2657,7 @@ pboard(board); if(sscanf(inBuf+7, "Allow repeats=%d", &allowRep) == 1) continue; if(sscanf(inBuf+7, "Resign=%d", &resign) == 1) continue; if(sscanf(inBuf+7, "Contempt=%d", &contemptFactor) == 1) continue; + if(sscanf(inBuf+7, "Okazaki rule=%d", &okazaki) == 1) continue; if(sscanf(inBuf+7, "Promote on entry=%d", &entryProm) == 1) continue; if(sscanf(inBuf+7, "Tsume=%s", command) == 1) { if(!strcmp(command, "no")) tsume = 0; else -- 1.7.0.4