From 71cf8391b10e8e3f96ce2fe09116ea290ad70f30 Mon Sep 17 00:00:00 2001 From: H.G. Muller Date: Tue, 22 Oct 2013 20:02:08 +0200 Subject: [PATCH] Make e.p. capture also work in variant lion, where P = 50 --- hachu.c | 12 +++++++----- 1 files changed, 7 insertions(+), 5 deletions(-) diff --git a/hachu.c b/hachu.c index 3b7a4a3..e47cf82 100644 --- a/hachu.c +++ b/hachu.c @@ -140,7 +140,7 @@ 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; +int bWidth, bHeight, bsize, zone, currentVariant, chuFlag, tenFlag, chessFlag, repDraws, stalemate, tsume, pvCuts, allowRep, entryProm, 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 @@ -888,6 +888,7 @@ void Init (int var) { int i, j, k; + PieceDesc *pawn; currentVariant = variants[var].varNr; bWidth = variants[var].boardWidth; @@ -901,6 +902,7 @@ Init (int var) stalemate = (currentVariant == V_CHESS || currentVariant == V_MAKRUK || currentVariant == V_LION); repDraws = (stalemate || currentVariant == V_SHATRANJ); ll = 0; lr = bHeight - 1; ul = (bHeight - 1)*bWidth; ur = ul + bHeight - 1; + pawn = LookUp("P", currentVariant); pVal = pawn ? pawn->value : 0; // get Pawn value for(i= -1; i<9; i++) { // board steps in linear coordinates kStep[i] = STEP(direction[i&7].x, direction[i&7].y); // King @@ -1850,9 +1852,9 @@ if(PATH) printf("# autofail end (%d-%d)\n", firstMove, msp); phase = 4; // out of victims: all captures generated if(chessFlag && promoSuppress != ABSENT) { // e.p. rights. Create e.p. captures as Lion moves int n = board[promoSuppress-1], old = msp; // a-side neighbor of pushed pawn - if( n != EMPTY && (n&TYPE) == stm && p[n].value == 80 ) NewCapture(promoSuppress-1, SPECIAL + 20 - 4*stm, 0); + if( n != EMPTY && (n&TYPE) == stm && p[n].value == pVal ) NewCapture(promoSuppress-1, SPECIAL + 20 - 4*stm, 0); n = board[promoSuppress+1]; // h-side neighbor of pushed pawn - if( n != EMPTY && (n&TYPE) == stm && p[n].value == 80 ) NewCapture(promoSuppress+1, SPECIAL + 52 - 4*stm, 0); + if( n != EMPTY && (n&TYPE) == stm && p[n].value == pVal ) NewCapture(promoSuppress+1, SPECIAL + 52 - 4*stm, 0); if(msp != old) goto extractMove; // one or more e.p. capture were generated } case 4: // dubious captures @@ -2344,7 +2346,7 @@ ParseMove (char *moveText) for(j=0; j<8; j++) if(e + kStep[j] == t) break; if(j >= 8) return INVALID; // this rejects Lion Dog 1+2 moves! t2 = SPECIAL + 8*i + j; - } else if(chessFlag && board[f] != EMPTY && p[board[f]].value == 80 && board[t] == EMPTY) { // Pawn to empty, could be e.p. + } else if(chessFlag && board[f] != EMPTY && p[board[f]].value == pVal && board[t] == EMPTY) { // Pawn to empty, could be e.p. if(t == f + BW + 1) t2 = SPECIAL + 16; else if(t == f + BW - 1) t2 = SPECIAL + 48; else if(t == f - BW + 1) t2 = SPECIAL + 20; else @@ -2594,7 +2596,7 @@ pboard(board); PrintResult(stm, score); } else { MOVE f, pMove = move; - if((move & SQUARE) >= SPECIAL && p[board[f = move>>SQLEN & SQUARE]].value == 80) { // e.p. capture + if((move & SQUARE) >= SPECIAL && p[board[f = move>>SQLEN & SQUARE]].value == pVal) { // e.p. capture pMove = move & ~SQUARE | f + toList[(move & SQUARE) - SPECIAL]; // print as a single move } stm = MakeMove2(stm, move); // assumes MakeMove returns new side to move -- 1.7.0.4