From: Joona Kiiski <joona.kiiski@gmail.com>
Date: Tue, 8 Oct 2013 21:43:33 +0000 (+0100)
Subject: Smoother transition for LMR
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=b15e148b5e8929cfc17a388c79fbf4acdc0712f6

Smoother transition for LMR

Passed both short TC:
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 12376 W: 2596 L: 2454 D: 7326

And long TC:
LLR: 2.97 (-2.94,2.94) [0.00,6.00]
Total: 14798 W: 2584 L: 2409 D: 9805

bench: 8279065
---

diff --git a/src/search.cpp b/src/search.cpp
index 4683a006..36a89d83 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -143,6 +143,9 @@ void Search::init() {
 
       if (Reductions[0][0][hd][mc] > 2 * ONE_PLY)
           Reductions[0][0][hd][mc] += ONE_PLY;
+
+      else if (Reductions[0][0][hd][mc] > 1 * ONE_PLY)
+          Reductions[0][0][hd][mc] += ONE_PLY / 2;
   }
 
   // Init futility margins array