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Minimal support for FRC in the data generator. (#4049)

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Allows UCI_Chess960 to be true during data generation.
If UCI_Chess960 is true then strips castling rights from all saved
positions and skips saving positions with castling move.
UCI_Chess960 is respected in transforms.
This commit is contained in:
Tomasz Sobczyk
2022-06-03 06:36:46 +02:00
committed by GitHub
parent 6e907f52c5
commit 399d556c27
9 changed files with 66 additions and 40 deletions
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src/tools/transform.cpp
+8 -5
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@@ -140,6 +140,7 @@ namespace Stockfish::Tools
buffer.reserve(batch_size);
const bool frc = Options["UCI_Chess960"];
uint64_t num_processed = 0;
for (;;)
{
@@ -149,7 +150,7 @@ namespace Stockfish::Tools
auto& ps = v.value();
pos.set_from_packed_sfen(ps.sfen, &si, th);
pos.set_from_packed_sfen(ps.sfen, &si, th, frc);
auto static_eval = Eval::evaluate(pos);
auto deep_eval = ps.score;
ps.score = nudge(params, static_eval, deep_eval);
@@ -290,6 +291,7 @@ namespace Stockfish::Tools
Threads.execute_with_workers([&](auto& th){
Position& pos = th.rootPos;
StateInfo si;
const bool frc = Options["UCI_Chess960"];
for(;;)
{
@@ -297,7 +299,7 @@ namespace Stockfish::Tools
if (!fen.has_value())
return;
pos.set(*fen, false, &si, &th);
pos.set(*fen, frc, &si, &th);
pos.state()->rule50 = 0;
@@ -310,7 +312,7 @@ namespace Stockfish::Tools
continue;
PackedSfenValue ps;
pos.sfen_pack(ps.sfen);
pos.sfen_pack(ps.sfen, pos.is_chess960());
ps.score = search_value;
ps.move = search_pv[0];
ps.gamePly = 1;
@@ -401,6 +403,7 @@ namespace Stockfish::Tools
Threads.execute_with_workers([&](auto& th){
Position& pos = th.rootPos;
StateInfo si;
const bool frc = Options["UCI_Chess960"];
for (;;)
{
@@ -410,7 +413,7 @@ namespace Stockfish::Tools
for(auto& ps : psv)
{
pos.set_from_packed_sfen(ps.sfen, &si, &th);
pos.set_from_packed_sfen(ps.sfen, &si, &th, frc);
for (int cnt = 0; cnt < params.research_count; ++cnt)
Search::search(pos, params.depth, 1);
@@ -420,7 +423,7 @@ namespace Stockfish::Tools
if (search_pv.empty())
continue;
pos.sfen_pack(ps.sfen);
pos.sfen_pack(ps.sfen, false);
ps.score = search_value;
if (!params.keep_moves)
ps.move = search_pv[0];