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#include "osl/book/openingBook.h"
#include "osl/csa.h"
#include "osl/search/quiescenceSearch2.h"
#include "osl/search/quiescenceSearch2.tcc"
#include "osl/eval/pieceEval.h"
#include <iostream>
#include <cstring>
using namespace osl::book;
static int qsearch(osl::SimpleState &s, osl::Move lastMove)
{
typedef osl::search::QuiescenceSearch2<osl::eval::PieceEval> qsearch_t;
osl::NumEffectState state(s);
osl::search::SimpleHashTable table(100000, -16, false);
osl::search::SearchState2Core::checkmate_t checkmate_searcher;
osl::search::SearchState2Core core(state, checkmate_searcher);
qsearch_t qs(core, table);
osl::eval::PieceEval ev(state);
return qs.search(state.turn(), ev, lastMove);
}
int main(int argc, char **argv)
{
if (argc != 2)
{
std::cerr << "Usage: " << argv[0] << " FILENAME" << std::endl;
return 1;
}
WeightedBook book(argv[1]);
bool states[book.totalState()];
memset(states, 0, sizeof(bool) * book.totalState());
std::vector<int> stateToVisit;
stateToVisit.push_back(book.startState());
const int threshold = osl::eval::Ptype_Eval_Table.value(osl::SILVER);
while (!stateToVisit.empty())
{
const int stateIndex = stateToVisit.back();
stateToVisit.pop_back();
states[stateIndex] = true;
osl::SimpleState state = book.board(stateIndex);
int value = qsearch(state,
osl::Move::PASS(alt(state.turn())));
const auto moves = book.moves(stateIndex);
for (size_t i = 0; i < moves.size(); i++)
{
const int nextIndex = moves[i].stateIndex();
osl::SimpleState newState = book.board(nextIndex);
osl::Move move = moves[i].move;
int newValue = qsearch(newState, move);
int diff = newValue - value;
// the loss too big
if ((state.turn() == osl::BLACK && diff < -threshold)
|| (state.turn() == osl::WHITE && diff > threshold))
std::cout << "----" << std::endl
<< state << osl::csa::show(move) << std::endl;
// the gain too big
if ((state.turn() == osl::BLACK && diff > threshold)
|| (state.turn() == osl::WHITE && diff < -threshold))
std::cout << "++++" << std::endl
<< state << osl::csa::show(move) << std::endl;
if (! states[nextIndex])
{
stateToVisit.push_back(nextIndex);
}
}
}
}
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