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Symmetric King Safety: take 2

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Another attempt at retiring current asymmetric
king evaluation and use a much simpler symmetric
one. As a good side effect we can avoid recalculating
eval after a null move.

Tested in no-regression mode and passed

STC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 21580 W: 3752 L: 3632 D: 14196

LTC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 18253 W: 2593 L: 2469 D: 13191

And a LTC regression test against SF DD to
verify we don't have regression against
weaker engines due to some kind of 'contempt'
effect:

ELO: 54.69 +-2.1 (95%) LOS: 100.0%
Total: 40000 W: 11072 L: 4827 D: 24101

bench: 8205159
This commit is contained in:
Lucas Braesch
2014-06-03 20:48:43 +08:00
committed by Marco Costalba
parent 187a9fe5e7
commit adeded29fb
4 changed files with 36 additions and 47 deletions
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6
src/uci.cpp
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@@ -197,11 +197,7 @@ void UCI::loop(int argc, char* argv[]) {
<< "\n" << Options
<< "\nuciok" << sync_endl;
else if (token == "eval")
{
Search::RootColor = pos.side_to_move(); // Ensure it is set
sync_cout << Eval::trace(pos) << sync_endl;
}
else if (token == "eval") sync_cout << Eval::trace(pos) << sync_endl;
else if (token == "ucinewgame") TT.clear();
else if (token == "go") go(pos, is);
else if (token == "position") position(pos, is);