/* Try to solve in solve_nr_remaining half-moves.
* @param si slice index
* @note assigns solve_result the length of solution found and written, i.e.:
* previous_move_is_illegal the move just played is illegal
* this_move_is_illegal the move being played is illegal
* immobility_on_next_move the moves just played led to an
* unintended immobility on the next move
* <=n+1 length of shortest solution found (n+1 only if in next
* branch)
* n+2 no solution found in this branch
* n+3 no solution found in next branch
* (with n denominating solve_nr_remaining)
*/
void continuation_solver_solve(slice_index si)
{
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",si);
TraceFunctionParamListEnd();
fork_solve_delegate(si);
if (move_has_solved())
{
#if !defined(NDEBUG)
stip_length_type const test_result = solve_result;
#endif
stip_length_type const save_solve_nr_remaining = solve_nr_remaining;
if (solve_nr_remaining>solve_result)
solve_nr_remaining = solve_result;
pipe_solve_delegate(si);
solve_nr_remaining = save_solve_nr_remaining;
assert(solve_result==test_result);
}
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
/* Try to solve in solve_nr_remaining half-moves.
* @param si slice index
* @note assigns solve_result the length of solution found and written, i.e.:
* previous_move_is_illegal the move just played is illegal
* this_move_is_illegal the move being played is illegal
* immobility_on_next_move the moves just played led to an
* unintended immobility on the next move
* <=n+1 length of shortest solution found (n+1 only if in next
* branch)
* n+2 no solution found in this branch
* n+3 no solution found in next branch
* (with n denominating solve_nr_remaining)
*/
void maxsolutions_counter_solve(slice_index si)
{
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",si);
TraceFunctionParamListEnd();
pipe_solve_delegate(si);
if (move_has_solved())
increase_nr_found_solutions();
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
/* Try to solve in solve_nr_remaining half-moves.
* @param si slice index
* @note assigns solve_result the length of solution found and written, i.e.:
* previous_move_is_illegal the move just played is illegal
* this_move_is_illegal the move being played is illegal
* immobility_on_next_move the moves just played led to an
* unintended immobility on the next move
* <=n+1 length of shortest solution found (n+1 only if in next
* branch)
* n+2 no solution found in this branch
* n+3 no solution found in next branch
* (with n denominating solve_nr_remaining)
*/
void threat_collector_solve(slice_index si)
{
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",si);
TraceFunctionParamListEnd();
pipe_solve_delegate(si);
if (move_has_solved())
append_to_table(threats[parent_ply[parent_ply[nbply]]]);
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
/* Try to solve in solve_nr_remaining half-moves.
* @param si slice index
* @note assigns solve_result the length of solution found and written, i.e.:
* previous_move_is_illegal the move just played is illegal
* this_move_is_illegal the move being played is illegal
* immobility_on_next_move the moves just played led to an
* unintended immobility on the next move
* <=n+1 length of shortest solution found (n+1 only if in next
* branch)
* n+2 no solution found in this branch
* n+3 no solution found in next branch
* (with n denominating solve_nr_remaining)
*/
void killer_attack_collector_solve(slice_index si)
{
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",si);
TraceFunctionParamListEnd();
pipe_solve_delegate(si);
if (move_has_solved())
remember_killer_move();
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
/* Try to solve in solve_nr_remaining half-moves.
* @param si slice index
* @note assigns solve_result the length of solution found and written, i.e.:
* previous_move_is_illegal the move just played is illegal
* this_move_is_illegal the move being played is illegal
* immobility_on_next_move the moves just played led to an
* unintended immobility on the next move
* <=n+1 length of shortest solution found (n+1 only if in next
* branch)
* n+2 no solution found in this branch
* n+3 no solution found in next branch
* (with n denominating solve_nr_remaining)
*/
void threat_defeated_tester_solve(slice_index si)
{
ply const threats_ply = parent_ply[parent_ply[nbply]];
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",si);
TraceFunctionParamListEnd();
pipe_solve_delegate(si);
/* we are not interested in whether threats are refuted when we are looking
* for short continuations to defenses
*/
if (solve_nr_remaining>=threat_lengths[threats_ply]-2)
{
if (is_current_move_in_table(threats[threats_ply]))
{
if (move_has_solved())
{
--nr_threats_to_be_confirmed;
if (nr_threats_to_be_confirmed>0)
/* threats tried so far still work (perhaps shorter than
* before the current defense), but we haven't tried all
* threats yet -> don't stop the iteration over the
* attacking moves
*/
solve_result = MOVE_HAS_NOT_SOLVED_LENGTH();
}
else if (solve_nr_remaining==threat_lengths[threats_ply]-1)
/* we have found a defeated threat -> stop the iteration */
solve_result = MOVE_HAS_SOLVED_LENGTH();
}
else
/* not a threat -> don't stop the iteration */
solve_result = MOVE_HAS_NOT_SOLVED_LENGTH();
}
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}