Smoother transition for LMR

zamar · mcostalba · commit b15e148b5e89 · 2013-10-09T19:13:41.000+02:00
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
@@ -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

Original file line number	Diff line number	Diff line change
`@@ -143,6 +143,9 @@ void Search::init() {`
`143`	`143`
`144`	`144`	`if (Reductions[0][0][hd][mc] > 2 * ONE_PLY)`
`145`	`145`	`Reductions[0][0][hd][mc] += ONE_PLY;`
	`146`	`+`
	`147`	`+ else if (Reductions[0][0][hd][mc] > 1 * ONE_PLY)`
	`148`	`+ Reductions[0][0][hd][mc] += ONE_PLY / 2;`
`146`	`149`	`}`
`147`	`150`
`148`	`151`	`// Init futility margins array`