#include "shogi.h"
-unsigned int *
+unsigned int * CONV
b_gen_evasion( tree_t * restrict ptree, unsigned int * restrict pmove )
{
bitboard_t bb_desti, bb_checker, bb_inter, bb_target, bb_piece;
XorDiag2( sq_bk, OCCUPIED_DIAG2 );
XorDiag1( sq_bk, OCCUPIED_DIAG1 );
- BBNot( bb_desti, BB_BOCCUPY );
- BBAnd( bb_desti, bb_desti, abb_king_attacks[sq_bk] );
+ BBNotAnd( bb_desti, abb_king_attacks[sq_bk], BB_BOCCUPY );
utemp = From2Move(sq_bk) | Piece2Move(king);
- while ( BBToU( bb_desti ) )
+ while ( BBTest( bb_desti ) )
{
to = LastOne( bb_desti );
if ( ! is_black_attacked( ptree, to ) )
XorDiag2( sq_bk, OCCUPIED_DIAG2 );
XorDiag1( sq_bk, OCCUPIED_DIAG1 );
- bb_checker = attacks_to_piece( ptree, sq_bk );
- BBAnd( bb_checker, bb_checker, BB_WOCCUPY );
+ bb_checker = w_attacks_to_piece( ptree, sq_bk );
nchecker = PopuCount( bb_checker );
if ( nchecker == 2 ) { return pmove; }
BBOr( bb_target, bb_inter, bb_checker );
BBAnd( bb_desti, bb_target, BB_BPAWN_ATK );
- while ( BBToU( bb_desti ) )
+ while ( BBTest( bb_desti ) )
{
to = LastOne( bb_desti );
Xor( to, bb_desti );
}
bb_piece = BB_BLANCE;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = LastOne( bb_piece );
Xor( from, bb_piece );
bb_desti = AttackFile( from );
BBAnd( bb_desti, bb_desti, abb_minus_rays[from] );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_bk][from];
if ( ! idirec || ! is_pinned_on_black_king( ptree, from, idirec ) )
}
bb_piece = BB_BKNIGHT;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = LastOne( bb_piece );
Xor( from, bb_piece );
BBAnd( bb_desti, bb_target, abb_b_knight_attacks[from] );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_bk][from];
if ( ! idirec || ! is_pinned_on_black_king( ptree, from, idirec ) )
if ( to < A6 ) { *pmove++ = utemp | FLAG_PROMO; }
if ( to >= A7 ) { *pmove++ = utemp; }
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_BSILVER;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = LastOne( bb_piece );
Xor( from, bb_piece );
BBAnd( bb_desti, bb_target, abb_b_silver_attacks[from] );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_bk][from];
if ( ! idirec || ! is_pinned_on_black_king( ptree, from, idirec ) )
| Cap2Move(-BOARD[to]) );
if ( from < A6 || to < A6 ) { *pmove++ = utemp | FLAG_PROMO; }
*pmove++ = utemp;
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_BTGOLD;
- while( BBToU( bb_piece ) )
+ while( BBTest( bb_piece ) )
{
from = LastOne( bb_piece );
Xor( from, bb_piece );
BBAnd( bb_desti, bb_target, abb_b_gold_attacks[from] );
- if ( ! BBToU(bb_desti) ) { continue; }
+ if ( ! BBTest(bb_desti) ) { continue; }
idirec = (int)adirec[sq_bk][from];
if ( ! idirec || ! is_pinned_on_black_king( ptree, from, idirec ) )
*pmove++ = ( To2Move(to) | From2Move(from)
| Piece2Move(BOARD[from])
| Cap2Move(-BOARD[to]) );
- } while( BBToU( bb_desti ) );
+ } while( BBTest( bb_desti ) );
}
bb_piece = BB_BBISHOP;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = LastOne( bb_piece );
Xor( from, bb_piece );
AttackBishop( bb_desti, from );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_bk][from];
if ( ! idirec || ! is_pinned_on_black_king( ptree, from, idirec ) )
do {
| Cap2Move(-BOARD[to]) );
if ( from < A6 || to < A6 ) { utemp |= FLAG_PROMO; }
*pmove++ = utemp;
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_BROOK;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = LastOne( bb_piece );
Xor( from, bb_piece );
AttackRook( bb_desti, from );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_bk][from];
if ( ! idirec || ! is_pinned_on_black_king( ptree, from, idirec ) )
do {
| Cap2Move(-BOARD[to]) );
if ( from < A6 || to < A6 ) { utemp |= FLAG_PROMO; }
*pmove++ = utemp;
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_BHORSE;
- while( BBToU( bb_piece ) )
+ while( BBTest( bb_piece ) )
{
from = LastOne( bb_piece );
Xor( from, bb_piece );
AttackHorse( bb_desti, from );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU(bb_desti) ) { continue; }
+ if ( ! BBTest(bb_desti) ) { continue; }
idirec = (int)adirec[sq_bk][from];
if ( ! idirec || ! is_pinned_on_black_king( ptree, from, idirec ) )
Xor( to, bb_desti);
*pmove++ = ( To2Move(to) | From2Move(from) | Piece2Move(horse)
| Cap2Move(-BOARD[to]) );
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_BDRAGON;
- while( BBToU( bb_piece ) )
+ while( BBTest( bb_piece ) )
{
from = LastOne( bb_piece );
Xor( from, bb_piece );
AttackDragon( bb_desti, from );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU(bb_desti) ) { continue; }
+ if ( ! BBTest(bb_desti) ) { continue; }
idirec = (int)adirec[sq_bk][from];
if ( ! idirec || ! is_pinned_on_black_king( ptree, from, idirec ) )
Xor( to, bb_desti );
*pmove++ = ( To2Move(to) | From2Move(from) | Piece2Move(dragon)
| Cap2Move(-BOARD[to]) );
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
if ( ! HAND_B ) { return pmove; }
- if ( ! BBToU(bb_inter) ) { return pmove; }
+ if ( ! BBTest(bb_inter) ) { return pmove; }
/* drops */
bb_target = bb_inter;
ais_pawn[7] = ubb_pawn_cmp & ( mask_file1 >> 7 );
ais_pawn[8] = ubb_pawn_cmp & ( mask_file1 >> 8 );
- while ( BBToU( bb_target ) )
+ while ( BBTest( bb_target ) )
{
to = LastOne( bb_target );
utemp = To2Move(to);
}
}
else {
- while ( BBToU( bb_target ) )
+ while ( BBTest( bb_target ) )
{
to = LastOne( bb_target );
utemp = To2Move(to);
}
-unsigned int *
+unsigned int * CONV
w_gen_evasion( tree_t * restrict ptree, unsigned int * restrict pmove )
{
bitboard_t bb_desti, bb_checker, bb_inter, bb_target, bb_piece;
XorDiag2( sq_wk, OCCUPIED_DIAG2 );
XorDiag1( sq_wk, OCCUPIED_DIAG1 );
- BBNot( bb_desti, BB_WOCCUPY );
- BBAnd( bb_desti, bb_desti, abb_king_attacks[sq_wk] );
+ BBNotAnd( bb_desti, abb_king_attacks[sq_wk], BB_WOCCUPY );
utemp = From2Move(sq_wk) | Piece2Move(king);
- while ( BBToU( bb_desti ) )
+ while ( BBTest( bb_desti ) )
{
to = FirstOne( bb_desti );
if ( ! is_white_attacked( ptree, to ) )
XorDiag2( sq_wk, OCCUPIED_DIAG2 );
XorDiag1( sq_wk, OCCUPIED_DIAG1 );
- bb_checker = attacks_to_piece( ptree, sq_wk );
- BBAnd( bb_checker, bb_checker, BB_BOCCUPY );
+ bb_checker = b_attacks_to_piece( ptree, sq_wk );
nchecker = PopuCount( bb_checker );
if ( nchecker == 2 ) { return pmove; }
BBOr( bb_target, bb_inter, bb_checker );
BBAnd( bb_desti, bb_target, BB_WPAWN_ATK );
- while ( BBToU( bb_desti ) )
+ while ( BBTest( bb_desti ) )
{
to = FirstOne( bb_desti );
Xor( to, bb_desti );
}
bb_piece = BB_WLANCE;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = FirstOne( bb_piece );
Xor( from, bb_piece );
bb_desti = AttackFile( from );
BBAnd( bb_desti, bb_desti, abb_plus_rays[from] );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_wk][from];
if ( ! idirec || ! is_pinned_on_white_king( ptree, from, idirec ) )
}
bb_piece = BB_WKNIGHT;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = FirstOne( bb_piece );
Xor( from, bb_piece );
BBAnd( bb_desti, bb_target, abb_w_knight_attacks[from] );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_wk][from];
if ( ! idirec || ! is_pinned_on_white_king( ptree, from, idirec ) )
| Cap2Move(BOARD[to]) );
if ( to > I4 ) { *pmove++ = utemp | FLAG_PROMO; }
if ( to <= I3 ) { *pmove++ = utemp; }
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_WSILVER;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = FirstOne( bb_piece );
Xor( from, bb_piece );
BBAnd( bb_desti, bb_target, abb_w_silver_attacks[from] );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_wk][from];
if ( ! idirec || ! is_pinned_on_white_king( ptree, from, idirec ) )
| Cap2Move(BOARD[to]) );
if ( from > I4 || to > I4 ) { *pmove++ = utemp | FLAG_PROMO; }
*pmove++ = utemp;
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_WTGOLD;
- while( BBToU( bb_piece ) )
+ while( BBTest( bb_piece ) )
{
from = FirstOne( bb_piece );
Xor( from, bb_piece );
BBAnd( bb_desti, bb_target, abb_w_gold_attacks[from] );
- if ( ! BBToU(bb_desti) ) { continue; }
+ if ( ! BBTest(bb_desti) ) { continue; }
idirec = (int)adirec[sq_wk][from];
if ( ! idirec || ! is_pinned_on_white_king( ptree, from, idirec ) )
*pmove++ = ( To2Move(to) | From2Move(from)
| Piece2Move(-BOARD[from])
| Cap2Move(BOARD[to]) );
- } while( BBToU( bb_desti ) );
+ } while( BBTest( bb_desti ) );
}
bb_piece = BB_WBISHOP;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = FirstOne( bb_piece );
Xor( from, bb_piece );
AttackBishop( bb_desti, from );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_wk][from];
if ( ! idirec || ! is_pinned_on_white_king( ptree, from, idirec ) )
| Cap2Move(BOARD[to]) );
if ( from > I4 || to > I4 ) { utemp |= FLAG_PROMO; }
*pmove++ = utemp;
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_WROOK;
- while ( BBToU( bb_piece ) )
+ while ( BBTest( bb_piece ) )
{
from = FirstOne( bb_piece );
Xor( from, bb_piece );
AttackRook( bb_desti, from );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU( bb_desti ) ) { continue; }
+ if ( ! BBTest( bb_desti ) ) { continue; }
idirec = (int)adirec[sq_wk][from];
if ( ! idirec || ! is_pinned_on_white_king( ptree, from, idirec ) )
do {
| Cap2Move(BOARD[to]) );
if ( from > I4 || to > I4 ) { utemp |= FLAG_PROMO; }
*pmove++ = utemp;
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_WHORSE;
- while( BBToU( bb_piece ) )
+ while( BBTest( bb_piece ) )
{
from = FirstOne( bb_piece );
Xor( from, bb_piece );
AttackHorse( bb_desti, from );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU(bb_desti) ) { continue; }
+ if ( ! BBTest(bb_desti) ) { continue; }
idirec = (int)adirec[sq_wk][from];
if ( ! idirec || ! is_pinned_on_white_king( ptree, from, idirec ) )
Xor( to, bb_desti);
*pmove++ = ( To2Move(to) | From2Move(from) | Piece2Move(horse)
| Cap2Move(BOARD[to]) );
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
bb_piece = BB_WDRAGON;
- while( BBToU( bb_piece ) )
+ while( BBTest( bb_piece ) )
{
from = FirstOne( bb_piece );
Xor( from, bb_piece );
AttackDragon( bb_desti, from );
BBAnd( bb_desti, bb_desti, bb_target );
- if ( ! BBToU(bb_desti) ) { continue; }
+ if ( ! BBTest(bb_desti) ) { continue; }
idirec = (int)adirec[sq_wk][from];
if ( ! idirec || ! is_pinned_on_white_king( ptree, from, idirec ) )
Xor( to, bb_desti );
*pmove++ = ( To2Move(to) | From2Move(from) | Piece2Move(dragon)
| Cap2Move(BOARD[to]) );
- } while ( BBToU( bb_desti ) );
+ } while ( BBTest( bb_desti ) );
}
if ( ! HAND_W ) { return pmove; }
- if ( ! BBToU(bb_inter) ) { return pmove; }
+ if ( ! BBTest(bb_inter) ) { return pmove; }
/* drop */
bb_target = bb_inter;
ais_pawn[7] = ubb_pawn_cmp & ( mask_file1 >> 7 );
ais_pawn[8] = ubb_pawn_cmp & ( mask_file1 >> 8 );
- while ( BBToU( bb_target ) )
+ while ( BBTest( bb_target ) )
{
to = FirstOne( bb_target );
utemp = To2Move(to);
}
}
else {
- while ( BBToU( bb_target ) )
+ while ( BBTest( bb_target ) )
{
to = FirstOne( bb_target );
utemp = To2Move(to);
return pmove;
}
+
+
+int CONV b_have_evasion( tree_t * restrict ptree )
+{
+ bitboard_t bb_desti, bb_checker, bb_inter, bb_target, bb_piece;
+ unsigned int ubb_pawn_cmp;
+ unsigned int ais_pawn[nfile];
+ int nchecker, sq_bk, to, sq_check, idirec, flag, from;
+
+ /* move the king */
+ flag = 0;
+ sq_bk = SQ_BKING;
+
+ Xor( sq_bk, BB_BOCCUPY );
+ XorFile( sq_bk, OCCUPIED_FILE );
+ XorDiag2( sq_bk, OCCUPIED_DIAG2 );
+ XorDiag1( sq_bk, OCCUPIED_DIAG1 );
+
+ BBNotAnd( bb_desti, abb_king_attacks[sq_bk], BB_BOCCUPY );
+
+ while ( BBTest( bb_desti ) )
+ {
+ to = LastOne( bb_desti );
+ Xor( to, bb_desti );
+
+ if ( ! is_black_attacked( ptree, to ) )
+ {
+ flag = 1;
+ break;
+ }
+ }
+
+ Xor( sq_bk, BB_BOCCUPY );
+ XorFile( sq_bk, OCCUPIED_FILE );
+ XorDiag2( sq_bk, OCCUPIED_DIAG2 );
+ XorDiag1( sq_bk, OCCUPIED_DIAG1 );
+
+ if ( flag ) { return 1; }
+
+
+ bb_checker = w_attacks_to_piece( ptree, sq_bk );
+ nchecker = PopuCount( bb_checker );
+ if ( nchecker == 2 ) { return 0; }
+
+ sq_check = LastOne( bb_checker );
+ bb_inter = abb_obstacle[sq_bk][sq_check];
+
+ /* move other pieces */
+ BBOr( bb_target, bb_inter, bb_checker );
+
+ BBAnd( bb_desti, bb_target, BB_BPAWN_ATK );
+ while ( BBTest( bb_desti ) )
+ {
+ to = LastOne( bb_desti );
+ Xor( to, bb_desti );
+
+ from = to + 9;
+ idirec = (int)adirec[sq_bk][from];
+ if ( ! idirec
+ || ! is_pinned_on_black_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_BLANCE;
+ while ( BBTest( bb_piece ) )
+ {
+ from = LastOne( bb_piece );
+ Xor( from, bb_piece );
+
+ bb_desti = AttackFile( from );
+ BBAnd( bb_desti, bb_desti, abb_minus_rays[from] );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_bk][from];
+ if ( ! idirec
+ || ! is_pinned_on_black_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_BKNIGHT;
+ while ( BBTest( bb_piece ) )
+ {
+ from = LastOne( bb_piece );
+ Xor( from, bb_piece );
+
+ BBAnd( bb_desti, bb_target, abb_b_knight_attacks[from] );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_bk][from];
+ if ( ! idirec
+ || ! is_pinned_on_black_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_BSILVER;
+ while ( BBTest( bb_piece ) )
+ {
+ from = LastOne( bb_piece );
+ Xor( from, bb_piece );
+
+ BBAnd( bb_desti, bb_target, abb_b_silver_attacks[from] );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_bk][from];
+ if ( ! idirec
+ || ! is_pinned_on_black_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_BTGOLD;
+ while( BBTest( bb_piece ) )
+ {
+ from = LastOne( bb_piece );
+ Xor( from, bb_piece );
+
+ BBAnd( bb_desti, bb_target, abb_b_gold_attacks[from] );
+ if ( ! BBTest(bb_desti) ) { continue; }
+
+ idirec = (int)adirec[sq_bk][from];
+ if ( ! idirec
+ || ! is_pinned_on_black_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_BBISHOP;
+ while ( BBTest( bb_piece ) )
+ {
+ from = LastOne( bb_piece );
+ Xor( from, bb_piece );
+
+ AttackBishop( bb_desti, from );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_bk][from];
+ if ( ! idirec
+ || ! is_pinned_on_black_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_BROOK;
+ while ( BBTest( bb_piece ) )
+ {
+ from = LastOne( bb_piece );
+ Xor( from, bb_piece );
+
+ AttackRook( bb_desti, from );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_bk][from];
+ if ( ! idirec
+ || ! is_pinned_on_black_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_BHORSE;
+ while( BBTest( bb_piece ) )
+ {
+ from = LastOne( bb_piece );
+ Xor( from, bb_piece );
+
+ AttackHorse( bb_desti, from );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest(bb_desti) ) { continue; }
+
+ idirec = (int)adirec[sq_bk][from];
+ if ( ! idirec
+ || ! is_pinned_on_black_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_BDRAGON;
+ while( BBTest( bb_piece ) )
+ {
+ from = LastOne( bb_piece );
+ Xor( from, bb_piece );
+
+ AttackDragon( bb_desti, from );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest(bb_desti) ) { continue; }
+
+ idirec = (int)adirec[sq_bk][from];
+ if ( ! idirec
+ || ! is_pinned_on_black_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ /* drops */
+ if ( ! BBTest(bb_inter) ) { return 0; }
+
+ if ( IsHandSGBR(HAND_B) ) { return 1; }
+
+ bb_inter.p[0] &= 0x003ffffU;
+ if ( ! BBTest(bb_inter) ) { return 0; }
+
+ if ( IsHandLance(HAND_B) ) { return 1; }
+
+ if ( IsHandKnight(HAND_B) )
+ {
+ bb_target = bb_inter;
+ bb_target.p[0] &= 0x00001ffU;
+ if ( BBTest(bb_target) ) { return 1; }
+ }
+
+ if ( IsHandPawn(HAND_B) )
+ {
+ bb_target = bb_inter;
+ ubb_pawn_cmp= BBToU( BB_BPAWN_ATK );
+ ais_pawn[0] = ubb_pawn_cmp & ( mask_file1 >> 0 );
+ ais_pawn[1] = ubb_pawn_cmp & ( mask_file1 >> 1 );
+ ais_pawn[2] = ubb_pawn_cmp & ( mask_file1 >> 2 );
+ ais_pawn[3] = ubb_pawn_cmp & ( mask_file1 >> 3 );
+ ais_pawn[4] = ubb_pawn_cmp & ( mask_file1 >> 4 );
+ ais_pawn[5] = ubb_pawn_cmp & ( mask_file1 >> 5 );
+ ais_pawn[6] = ubb_pawn_cmp & ( mask_file1 >> 6 );
+ ais_pawn[7] = ubb_pawn_cmp & ( mask_file1 >> 7 );
+ ais_pawn[8] = ubb_pawn_cmp & ( mask_file1 >> 8 );
+
+ while ( BBTest( bb_target ) )
+ {
+ to = LastOne( bb_target );
+ Xor( to, bb_target );
+
+ if ( ! ais_pawn[aifile[to]]
+ && ! IsMateBPawnDrop( ptree, to ) ) { return 1; }
+ }
+ }
+
+ return 0;
+}
+
+
+int CONV w_have_evasion( tree_t * restrict ptree )
+{
+ bitboard_t bb_desti, bb_checker, bb_inter, bb_target, bb_piece;
+ unsigned int ubb_pawn_cmp;
+ unsigned int ais_pawn[nfile];
+ int nchecker, sq_wk, to, sq_check, idirec, flag, from;
+
+ /* move the king */
+ flag = 0;
+ sq_wk = SQ_WKING;
+
+ Xor( sq_wk, BB_WOCCUPY );
+ XorFile( sq_wk, OCCUPIED_FILE );
+ XorDiag2( sq_wk, OCCUPIED_DIAG2 );
+ XorDiag1( sq_wk, OCCUPIED_DIAG1 );
+
+ BBNotAnd( bb_desti, abb_king_attacks[sq_wk], BB_WOCCUPY );
+ while ( BBTest( bb_desti ) )
+ {
+ to = FirstOne( bb_desti );
+ Xor( to, bb_desti );
+
+ if ( ! is_white_attacked( ptree, to ) )
+ {
+ flag = 1;
+ break;
+ }
+ }
+
+ Xor( sq_wk, BB_WOCCUPY );
+ XorFile( sq_wk, OCCUPIED_FILE );
+ XorDiag2( sq_wk, OCCUPIED_DIAG2 );
+ XorDiag1( sq_wk, OCCUPIED_DIAG1 );
+
+ if ( flag ) { return 1; }
+
+
+ bb_checker = b_attacks_to_piece( ptree, sq_wk );
+ nchecker = PopuCount( bb_checker );
+ if ( nchecker == 2 ) { return 0; }
+
+ sq_check = FirstOne( bb_checker );
+ bb_inter = abb_obstacle[sq_wk][sq_check];
+
+ /* move other pieces */
+ BBOr( bb_target, bb_inter, bb_checker );
+
+ BBAnd( bb_desti, bb_target, BB_WPAWN_ATK );
+ while ( BBTest( bb_desti ) )
+ {
+ to = FirstOne( bb_desti );
+ Xor( to, bb_desti );
+
+ from = to - 9;
+ idirec = (int)adirec[sq_wk][from];
+ if ( ! idirec
+ || ! is_pinned_on_white_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_WLANCE;
+ while ( BBTest( bb_piece ) )
+ {
+ from = FirstOne( bb_piece );
+ Xor( from, bb_piece );
+
+ bb_desti = AttackFile( from );
+ BBAnd( bb_desti, bb_desti, abb_plus_rays[from] );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_wk][from];
+ if ( ! idirec
+ || ! is_pinned_on_white_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_WKNIGHT;
+ while ( BBTest( bb_piece ) )
+ {
+ from = FirstOne( bb_piece );
+ Xor( from, bb_piece );
+
+ BBAnd( bb_desti, bb_target, abb_w_knight_attacks[from] );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_wk][from];
+ if ( ! idirec
+ || ! is_pinned_on_white_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_WSILVER;
+ while ( BBTest( bb_piece ) )
+ {
+ from = FirstOne( bb_piece );
+ Xor( from, bb_piece );
+
+ BBAnd( bb_desti, bb_target, abb_w_silver_attacks[from] );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_wk][from];
+ if ( ! idirec
+ || ! is_pinned_on_white_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_WTGOLD;
+ while( BBTest( bb_piece ) )
+ {
+ from = FirstOne( bb_piece );
+ Xor( from, bb_piece );
+
+ BBAnd( bb_desti, bb_target, abb_w_gold_attacks[from] );
+ if ( ! BBTest(bb_desti) ) { continue; }
+
+ idirec = (int)adirec[sq_wk][from];
+ if ( ! idirec
+ || ! is_pinned_on_white_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_WBISHOP;
+ while ( BBTest( bb_piece ) )
+ {
+ from = FirstOne( bb_piece );
+ Xor( from, bb_piece );
+
+ AttackBishop( bb_desti, from );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_wk][from];
+ if ( ! idirec
+ || ! is_pinned_on_white_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_WROOK;
+ while ( BBTest( bb_piece ) )
+ {
+ from = FirstOne( bb_piece );
+ Xor( from, bb_piece );
+
+ AttackRook( bb_desti, from );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest( bb_desti ) ) { continue; }
+
+ idirec = (int)adirec[sq_wk][from];
+ if ( ! idirec
+ || ! is_pinned_on_white_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_WHORSE;
+ while( BBTest( bb_piece ) )
+ {
+ from = FirstOne( bb_piece );
+ Xor( from, bb_piece );
+
+ AttackHorse( bb_desti, from );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest(bb_desti) ) { continue; }
+
+ idirec = (int)adirec[sq_wk][from];
+ if ( ! idirec
+ || ! is_pinned_on_white_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ bb_piece = BB_WDRAGON;
+ while( BBTest( bb_piece ) )
+ {
+ from = FirstOne( bb_piece );
+ Xor( from, bb_piece );
+
+ AttackDragon( bb_desti, from );
+ BBAnd( bb_desti, bb_desti, bb_target );
+ if ( ! BBTest(bb_desti) ) { continue; }
+
+ idirec = (int)adirec[sq_wk][from];
+ if ( ! idirec
+ || ! is_pinned_on_white_king( ptree, from, idirec ) ) { return 1; }
+ }
+
+ /* drop */
+ if ( ! BBTest(bb_inter) ) { return 0; }
+
+ if ( IsHandSGBR(HAND_W) ) { return 1; }
+
+ bb_inter.p[2] &= 0x7fffe00U;
+ if ( ! BBTest(bb_inter) ) { return 0; }
+
+ if ( IsHandLance(HAND_W) ) { return 1; }
+
+ if ( IsHandKnight(HAND_W) )
+ {
+ bb_target = bb_inter;
+ bb_target.p[2] &= 0x7fc0000U;
+ if ( BBTest(bb_target) ) { return 1; }
+ }
+
+ if ( IsHandPawn(HAND_W) )
+ {
+ bb_target = bb_inter;
+ ubb_pawn_cmp= BBToU( BB_WPAWN_ATK );
+ ais_pawn[0] = ubb_pawn_cmp & ( mask_file1 >> 0 );
+ ais_pawn[1] = ubb_pawn_cmp & ( mask_file1 >> 1 );
+ ais_pawn[2] = ubb_pawn_cmp & ( mask_file1 >> 2 );
+ ais_pawn[3] = ubb_pawn_cmp & ( mask_file1 >> 3 );
+ ais_pawn[4] = ubb_pawn_cmp & ( mask_file1 >> 4 );
+ ais_pawn[5] = ubb_pawn_cmp & ( mask_file1 >> 5 );
+ ais_pawn[6] = ubb_pawn_cmp & ( mask_file1 >> 6 );
+ ais_pawn[7] = ubb_pawn_cmp & ( mask_file1 >> 7 );
+ ais_pawn[8] = ubb_pawn_cmp & ( mask_file1 >> 8 );
+
+ while ( BBTest( bb_target ) )
+ {
+ to = FirstOne( bb_target );
+ Xor( to, bb_target );
+
+ if ( ! ais_pawn[aifile[to]]
+ && ! IsMateWPawnDrop( ptree, to ) ) { return 1; }
+ }
+ }
+
+ return 0;
+}
projects / bonanza.git / blobdiff