16 King Buckets (#410)

Bench: 4668255 Increase the number of input features to utilize 16 buckets (up from 8). STC ELO | 5.25 +- 4.27 (95%) CONF | 10.0+0.10s Threads=1 Hash=8MB GAMES | N: 12304 W: 3082 L: 2896 D: 6326 LTC ELO | 5.73 +- 3.98 (95%) SPRT | 60.0+0.60s Threads=1 Hash=64MB LLR | 2.95 (-2.94, 2.94) [0.00, 4.00] GAMES | N: 13344 W: 3162 L: 2942 D: 7240
jhonnold · Dec 18, 2022 · 5ddc45c · 5ddc45c
1 parent 63baa6c
commit 5ddc45c
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Showing 4 changed files with 13 additions and 13 deletions.
diff --git a/src/board.c b/src/board.c
@@ -32,14 +32,14 @@
 #include "uci.h"
 #include "zobrist.h"
 
-const uint16_t KING_BUCKETS[64] = {7, 7, 7, 7, 7, 7, 7, 7, //
-                                   7, 7, 7, 7, 7, 7, 7, 7, //
-                                   6, 6, 6, 6, 6, 6, 6, 6, //
-                                   6, 6, 6, 6, 6, 6, 6, 6, //
-                                   5, 5, 4, 4, 4, 4, 5, 5, //
-                                   5, 5, 4, 4, 4, 4, 5, 5, //
-                                   3, 2, 1, 0, 0, 1, 2, 3, //
-                                   3, 2, 1, 0, 0, 1, 2, 3};
+const uint16_t KING_BUCKETS[64] = {15, 15, 14, 14, 14, 14, 15, 15, //
+                                   15, 15, 14, 14, 14, 14, 15, 15, //
+                                   13, 13, 12, 12, 12, 12, 13, 13, //
+                                   13, 13, 12, 12, 12, 12, 13, 13, //
+                                   11, 10, 9,  8,  8,  9,  10, 11, //
+                                   11, 10, 9,  8,  8,  9,  10, 11, //
+                                   7,  6,  5,  4,  4,  5,  6,  7,  //
+                                   3,  2,  1,  0,  0,  1,  2,  3};
 
 // piece count key bit mask idx
 const uint64_t PIECE_COUNT_IDX[] =

diff --git a/src/makefile b/src/makefile
@@ -4,8 +4,8 @@
 EXE      = berserk
 SRC      = *.c pyrrhic/tbprobe.c
 CC       = gcc
-VERSION  = 20220925
-MAIN_NETWORK = networks/berserk-d981c77e4fa7.nn
+VERSION  = 202209251606
+MAIN_NETWORK = networks/berserk-c982d9682d4e.nn
 EVALFILE = $(MAIN_NETWORK)
 DEFS     = -DVERSION=\"$(VERSION)\" -DEVALFILE=\"$(EVALFILE)\" -DNDEBUG
 

diff --git a/src/networks b/src/networks
diff --git a/src/types.h b/src/types.h
@@ -24,9 +24,9 @@
 #define MAX_SEARCH_PLY (INT8_MAX + 1)
 #define MAX_MOVES      128
 
-#define N_KING_BUCKETS 8
+#define N_KING_BUCKETS 16
 
-#define N_FEATURES (8 * 12 * 64)
+#define N_FEATURES (N_KING_BUCKETS * 12 * 64)
 #define N_HIDDEN   512
 #define N_OUTPUT   1