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perft_test -> perft, perf -> perft_alt move2 -> move, move -> move_alt

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Bruno Raoult
2024-06-09 22:15:20 +02:00
parent 660d181e41
commit ebf01bc7db
7 changed files with 208 additions and 209 deletions
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18
src/search.c
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@@ -51,7 +51,6 @@ u64 perft(pos_t *pos, int depth, int ply, bool output)
movelist.nmoves = 0;
pos_set_checkers_pinners_blockers(pos);
state = pos->state;
pos_legal(pos, pos_gen_pseudo(pos, &movelist));
last = movelist.move + movelist.nmoves;
@@ -59,7 +58,7 @@ u64 perft(pos_t *pos, int depth, int ply, bool output)
if (depth == 1) {
nodes++;
} else {
move_do(pos, *move);
move_do(pos, *move, &state);
if (depth == 2) {
movelist_t movelist2;
pos_set_checkers_pinners_blockers(pos);
@@ -72,8 +71,7 @@ u64 perft(pos_t *pos, int depth, int ply, bool output)
printf("%s: %d\n", move_str(movestr, *move, 0), subnodes);
}
nodes += subnodes;
move_undo(pos, *move);
pos->state = state;
move_undo(pos, *move, &state);
}
}
@@ -83,7 +81,7 @@ u64 perft(pos_t *pos, int depth, int ply, bool output)
}
/**
* perft_test() - Perform perft on position, experiment version.
* perft_alt() - Perform perft on position, experimental version.
* @pos: &position to search
* @depth: Wanted depth.
* @ply: perft depth level.
@@ -93,7 +91,7 @@ u64 perft(pos_t *pos, int depth, int ply, bool output)
*
* @return: total moves found at @depth level.
*/
u64 perft_test(pos_t *pos, int depth, int ply, bool output)
u64 perft_alt(pos_t *pos, int depth, int ply, bool output)
{
int subnodes;
u64 nodes = 0;
@@ -103,6 +101,7 @@ u64 perft_test(pos_t *pos, int depth, int ply, bool output)
movelist.nmoves = 0;
pos_set_checkers_pinners_blockers(pos);
state = pos->state;
pos_legal(pos, pos_gen_pseudo(pos, &movelist));
last = movelist.move + movelist.nmoves;
@@ -110,20 +109,21 @@ u64 perft_test(pos_t *pos, int depth, int ply, bool output)
if (depth == 1) {
nodes++;
} else {
move_do2(pos, *move, &state);
move_do_alt(pos, *move);
if (depth == 2) {
movelist_t movelist2;
pos_set_checkers_pinners_blockers(pos);
subnodes = pos_legal(pos, pos_gen_pseudo(pos, &movelist2))->nmoves;
} else {
subnodes = perft_test(pos, depth - 1, ply + 1, output);
subnodes = perft_alt(pos, depth - 1, ply + 1, output);
}
if (output && ply == 1) {
char movestr[8];
printf("%s: %d\n", move_str(movestr, *move, 0), subnodes);
}
nodes += subnodes;
move_undo2(pos, *move, &state);
move_undo_alt(pos, *move);
pos->state = state;
}
}