From: FauziAkram <fauzi.dabat@hotmail.com>
Date: Mon, 4 Mar 2024 13:13:36 +0000 (+0300)
Subject: Update elo estimates
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=a96b0d46093c67707e4e75e7aa5aa057b7c131a2;p=stockfish

Update elo estimates

Tests used to change the elo worth of some functions:

https://tests.stockfishchess.org/tests/view/65c3f69dc865510db0283eef
https://tests.stockfishchess.org/tests/view/65c3f935c865510db0283f2a
https://tests.stockfishchess.org/tests/view/65d1489f1d8e83c78bfd7dbf
https://tests.stockfishchess.org/tests/view/65ce9d361d8e83c78bfd4951
https://tests.stockfishchess.org/tests/view/65cfcd901d8e83c78bfd6184

closes https://github.com/official-stockfish/Stockfish/pull/5089

No functional change
---

diff --git a/src/search.cpp b/src/search.cpp
index 70baffe3..8ed7841e 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -614,7 +614,7 @@ Value Search::Worker::search(
                 update_quiet_stats(pos, ss, *this, ttMove, stat_bonus(depth));
 
             // Extra penalty for early quiet moves of
-            // the previous ply (~0 Elo on STC, ~2 Elo on LTC).
+            // the previous ply (~1 Elo on STC, ~2 Elo on LTC)
             if (prevSq != SQ_NONE && (ss - 1)->moveCount <= 2 && !priorCapture)
                 update_continuation_histories(ss - 1, pos.piece_on(prevSq), prevSq,
                                               -stat_malus(depth + 1));
@@ -1067,7 +1067,7 @@ moves_loop:  // When in check, search starts here
                     extension = -1;
             }
 
-            // Recapture extensions (~1 Elo)
+            // Recapture extensions (~0 Elo on STC, ~1 Elo on LTC)
             else if (PvNode && move == ttMove && move.to_sq() == prevSq
                      && thisThread->captureHistory[movedPiece][move.to_sq()]
                                                   [type_of(pos.piece_on(move.to_sq()))]
@@ -1105,7 +1105,7 @@ moves_loop:  // When in check, search starts here
         if (ttCapture)
             r++;
 
-        // Decrease reduction for PvNodes (~3 Elo)
+        // Decrease reduction for PvNodes (~0 Elo on STC, ~2 Elo on LTC)
         if (PvNode)
             r--;
 
@@ -1167,7 +1167,7 @@ moves_loop:  // When in check, search starts here
         // Step 18. Full-depth search when LMR is skipped
         else if (!PvNode || moveCount > 1)
         {
-            // Increase reduction if ttMove is not present (~1 Elo)
+            // Increase reduction if ttMove is not present (~6 Elo)
             if (!ttMove)
                 r += 2;
 
diff --git a/src/timeman.cpp b/src/timeman.cpp
index e620dede..b64ec773 100644
--- a/src/timeman.cpp
+++ b/src/timeman.cpp
@@ -89,8 +89,8 @@ void TimeManagement::init(Search::LimitsType& limits,
                                                   - moveOverhead * (2 + mtg));
 
     // x basetime (+ z increment)
-    // If there is a healthy increment, timeLeft can exceed actual available
-    // game time for the current move, so also cap to 20% of available game time.
+    // If there is a healthy increment, timeLeft can exceed the actual available
+    // game time for the current move, so also cap to a percentage of available game time.
     if (limits.movestogo == 0)
     {
         // Use extra time with larger increments