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do not generate moves in pvs() terminal nodes

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Bruno Raoult
2023-07-13 10:39:36 +02:00
parent 20403a0795
commit b855ba59aa
1 changed files with 1 additions and 2 deletions
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3
src/search.c
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@@ -45,7 +45,6 @@ eval_t negamax(pos_t *pos, int depth, int color)
} }
moves_gen_all(pos); moves_gen_all(pos);
list_for_each_entry(move, &pos->moves[pos->turn], list) { list_for_each_entry(move, &pos->moves[pos->turn], list) {
log(1, "%.*s", 5 - depth, " ");
newpos = move_do(pos, move); newpos = move_do(pos, move);
score = -negamax(newpos, depth - 1, -color); score = -negamax(newpos, depth - 1, -color);
pos->node_count += newpos->node_count; pos->node_count += newpos->node_count;
@@ -86,7 +85,7 @@ eval_t pvs(pos_t *pos, int depth, int alpha, int beta, int color)
if (depth == 0) { if (depth == 0) {
//return quiesce(p, alpha, beta); /* leaf node */ //return quiesce(p, alpha, beta); /* leaf node */
moves_gen_all(pos); moves_gen_all_nomoves(pos);
score = eval(pos) * color; score = eval(pos) * color;
log_f(2, "Terminal: depth=%d ", depth); log_f(2, "Terminal: depth=%d ", depth);
log_f(2, "score=%d alpha=%d beta=%d\n", score, alpha, beta); log_f(2, "score=%d alpha=%d beta=%d\n", score, alpha, beta);