TT: Tweak replacement scheme

Elo   | 10.93 +- 6.12 (95%)
SPRT  | 40.0+0.40s Threads=1 Hash=8MB
LLR   | 2.95 (-2.94, 2.94) [0.00, 3.00]
Games | N: 5786 W: 1447 L: 1265 D: 3074
Penta | [6, 595, 1515, 765, 12]

Elo   | 8.98 +- 4.44 (95%)
SPRT  | 8.0+0.08s Threads=1 Hash=1MB
LLR   | 2.95 (-2.94, 2.94) [0.00, 2.00]
Games | N: 11028 W: 2731 L: 2446 D: 5851
Penta | [42, 1194, 2760, 1473, 45]

Bench 5754636

Author: Witek902

src/backend/TranspositionTable.cpp

@@ -247,7 +247,7 @@ void TranspositionTable::Write(const Position& position, ScoreType score, ScoreT
 
         // old entriess are less relevant
         const int32_t entryAge = (TTEntry::GenerationCycle + this->generation - data.generation) & (TTEntry::GenerationCycle - 1);
-        const int32_t entryRelevance = (int32_t)data.depth - 64 * entryAge + 4 * (data.bounds == TTEntry::Bounds::Exact);
+        const int32_t entryRelevance = (int32_t)data.depth - entryAge;
 
         if (entryRelevance < minRelevanceInCluster)
         {
@@ -261,7 +261,7 @@ void TranspositionTable::Write(const Position& position, ScoreType score, ScoreT
     // don't overwrite entries with worse depth if the bounds are not exact
     if (entry.bounds != TTEntry::Bounds::Exact &&
         positionKey == prevKey &&
-        entry.depth < prevEntry.depth - 3)
+        entry.depth < prevEntry.depth - 4)
     {
         return;
     }

src/frontend/UCI.cpp

@@ -13,7 +13,7 @@
 #include <math.h>
 
 #ifndef CAISSA_VERSION
-#define CAISSA_VERSION "1.16.13"
+#define CAISSA_VERSION "1.16.14"
 #endif // CAISSA_VERSION
 
 #if defined(USE_AVX512)

src/makefile

@@ -1,5 +1,5 @@
 EXE                = caissa
-VERSION            = 1.16.13
+VERSION            = 1.16.14
 EXE_NAME           = $(EXE)-$(VERSION)
 DEFAULT_EVALFILE   = ../data/neuralNets/eval-33.pnn
 EVALFILE           = $(DEFAULT_EVALFILE)