From 110644d91834fbf44859aa9aad63c23ed1dafc56 Mon Sep 17 00:00:00 2001 From: Marco Costalba Date: Fri, 19 Jul 2013 09:37:31 +0200 Subject: [PATCH 1/1] Better document what we skip when in check No functional change. --- src/search.cpp | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/search.cpp b/src/search.cpp index eae2ea27..3985ad30 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -623,7 +623,7 @@ namespace { Gains.update(pos.piece_on(to), to, -(ss-1)->staticEval - ss->staticEval); } - // Step 6. Razoring (is omitted in PV nodes) + // Step 6. Razoring (skipped when in check) if ( !PvNode && depth < 4 * ONE_PLY && eval + razor_margin(depth) < beta @@ -639,7 +639,7 @@ namespace { return v; } - // Step 7. Static null move pruning (is omitted in PV nodes) + // Step 7. Static null move pruning (skipped when in check) // We're betting that the opponent doesn't have a move that will reduce // the score by more than futility_margin(depth) if we do a null move. if ( !PvNode @@ -710,7 +710,7 @@ namespace { } } - // Step 9. ProbCut (is omitted in PV nodes) + // Step 9. ProbCut (skipped when in check) // If we have a very good capture (i.e. SEE > seeValues[captured_piece_type]) // and a reduced search returns a value much above beta, we can (almost) safely // prune the previous move. @@ -741,7 +741,7 @@ namespace { } } - // Step 10. Internal iterative deepening + // Step 10. Internal iterative deepening (skipped when in check) if ( depth >= (PvNode ? 5 * ONE_PLY : 8 * ONE_PLY) && ttMove == MOVE_NONE && (PvNode || ss->staticEval + Value(256) >= beta)) -- 2.39.2