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add info in pos_print, start perft TT testing

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Bruno Raoult
2024-06-13 10:28:32 +02:00
parent 8be03c6230
commit 148fef20ea
9 changed files with 310 additions and 49 deletions
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44
src/search.c
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@@ -43,13 +43,16 @@
*/
u64 perft(pos_t *pos, int depth, int ply, bool output)
{
int subnodes;
u64 nodes = 0;
static movelist_t stack;
//int subnodes;
u64 subnodes, nodes = 0;
movelist_t movelist;
move_t *move, *last;
state_t state;
movelist.nmoves = 0;
if (ply == 1)
stack.nmoves = 0;
pos_set_checkers_pinners_blockers(pos);
pos_legal(pos, pos_gen_pseudo(pos, &movelist));
@@ -59,19 +62,46 @@ u64 perft(pos_t *pos, int depth, int ply, bool output)
nodes++;
} else {
move_do(pos, *move, &state);
stack.move[stack.nmoves++] = *move;
if (ply == 2 &&
//move_from(*move) == F7 &&
//move_to(*move) == F5 &&
move_from(stack.move[stack.nmoves-2]) == B2 &&
move_to(stack.move[stack.nmoves-2]) == B4 &&
move_from(stack.move[stack.nmoves-1]) == F7 &&
move_to(stack.move[stack.nmoves-1]) == F5
) {
//&& pos->board[F5] == B_PAWN) {
moves_print(&stack, 0);
pos_print(pos);
}
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(pos, depth - 1, ply + 1, output);
hentry_t *entry;
//if (ply >= 4 && ply <= 8) {
if (ply == 4) {
if ((entry = tt_probe_perft(pos->key, depth))) {
subnodes = HASH_PERFT_VAL(entry->data);
printf("tt hit key=%lx ply=%d depth=%d nodes=%lu\n",
pos->key, ply, depth, subnodes);
} else {
subnodes = perft(pos, depth - 1, ply + 1, output);
tt_store_perft(pos->key, depth, subnodes);
}
} else {
subnodes = perft(pos, depth - 1, ply + 1, output);
}
}
if (output && ply == 1) {
char movestr[8];
printf("%s: %d\n", move_str(movestr, *move, 0), subnodes);
printf("%s: %lu\n", move_to_str(movestr, *move, 0), subnodes);
}
nodes += subnodes;
move_undo(pos, *move, &state);
stack.nmoves--;
}
}
@@ -99,7 +129,7 @@ u64 perft_alt(pos_t *pos, int depth, int ply, bool output)
move_t *move, *last;
state_t state;
movelist.nmoves = 0;
//movelist.nmoves = 0;
pos_set_checkers_pinners_blockers(pos);
state = pos->state;
@@ -119,7 +149,7 @@ u64 perft_alt(pos_t *pos, int depth, int ply, bool output)
}
if (output && ply == 1) {
char movestr[8];
printf("%s: %d\n", move_str(movestr, *move, 0), subnodes);
printf("%s: %d\n", move_to_str(movestr, *move, 0), subnodes);
}
nodes += subnodes;
move_undo_alt(pos, *move);