if (!PvNode && tte && ok_to_use_TT(tte, depth, beta, ply))
{
// Refresh tte entry to avoid aging
- TT.store(posKey, tte->value(), tte->type(), tte->depth(), ttMove, tte->static_value(), tte->king_danger());
+ TT.store(posKey, tte->value(), tte->type(), tte->depth(), ttMove, tte->static_value(), tte->static_value_margin());
ss->bestMove = ttMove; // Can be MOVE_NONE
return value_from_tt(tte->value(), ply);
assert(tte->static_value() != VALUE_NONE);
ss->eval = tte->static_value();
- ei.kingDanger[pos.side_to_move()] = tte->king_danger();
+ ei.margin[pos.side_to_move()] = tte->static_value_margin();
refinedValue = refine_eval(tte, ss->eval, ply);
}
else
{
refinedValue = ss->eval = evaluate(pos, ei);
- TT.store(posKey, VALUE_NONE, VALUE_TYPE_NONE, DEPTH_NONE, MOVE_NONE, ss->eval, ei.kingDanger[pos.side_to_move()]);
+ TT.store(posKey, VALUE_NONE, VALUE_TYPE_NONE, DEPTH_NONE, MOVE_NONE, ss->eval, ei.margin[pos.side_to_move()]);
}
// Save gain for the parent non-capture move
ValueType vt = (bestValue <= oldAlpha ? VALUE_TYPE_UPPER : bestValue >= beta ? VALUE_TYPE_LOWER : VALUE_TYPE_EXACT);
move = (bestValue <= oldAlpha ? MOVE_NONE : ss->bestMove);
- TT.store(posKey, value_to_tt(bestValue, ply), vt, depth, move, ss->eval, ei.kingDanger[pos.side_to_move()]);
+ TT.store(posKey, value_to_tt(bestValue, ply), vt, depth, move, ss->eval, ei.margin[pos.side_to_move()]);
// Update killers and history only for non capture moves that fails high
if ( bestValue >= beta
{
assert(tte->static_value() != VALUE_NONE);
- ei.kingDanger[pos.side_to_move()] = tte->king_danger();
+ ei.margin[pos.side_to_move()] = tte->static_value_margin();
bestValue = tte->static_value();
}
else
if (bestValue >= beta)
{
if (!tte)
- TT.store(pos.get_key(), value_to_tt(bestValue, ply), VALUE_TYPE_LOWER, DEPTH_NONE, MOVE_NONE, ss->eval, ei.kingDanger[pos.side_to_move()]);
+ TT.store(pos.get_key(), value_to_tt(bestValue, ply), VALUE_TYPE_LOWER, DEPTH_NONE, MOVE_NONE, ss->eval, ei.margin[pos.side_to_move()]);
return bestValue;
}
deepChecks = (depth == -ONE_PLY && bestValue >= beta - PawnValueMidgame / 8);
// Futility pruning parameters, not needed when in check
- futilityBase = bestValue + FutilityMarginQS + ei.kingDanger[pos.side_to_move()];
+ futilityBase = bestValue + FutilityMarginQS + ei.margin[pos.side_to_move()];
enoughMaterial = pos.non_pawn_material(pos.side_to_move()) > RookValueMidgame;
}
// Update transposition table
Depth d = (depth == DEPTH_ZERO ? DEPTH_ZERO : DEPTH_ZERO - ONE_PLY);
ValueType vt = (bestValue <= oldAlpha ? VALUE_TYPE_UPPER : bestValue >= beta ? VALUE_TYPE_LOWER : VALUE_TYPE_EXACT);
- TT.store(pos.get_key(), value_to_tt(bestValue, ply), vt, d, ss->bestMove, ss->eval, ei.kingDanger[pos.side_to_move()]);
+ TT.store(pos.get_key(), value_to_tt(bestValue, ply), vt, d, ss->bestMove, ss->eval, ei.margin[pos.side_to_move()]);
// Update killers only for checking moves that fails high
if ( bestValue >= beta
if (!tte || tte->move() != pv[i])
{
v = (p.is_check() ? VALUE_NONE : evaluate(p, ei));
- TT.store(p.get_key(), VALUE_NONE, VALUE_TYPE_NONE, DEPTH_NONE, pv[i], v, ei.kingDanger[pos.side_to_move()]);
+ TT.store(p.get_key(), VALUE_NONE, VALUE_TYPE_NONE, DEPTH_NONE, pv[i], v, ei.margin[pos.side_to_move()]);
}
p.do_move(pv[i], st);
}