diff --git a/Makefile b/Makefile
index d1d77f6..c22f230 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ OBJ_DIR=build
 MOLY_DIR=src
 CXX=clang++
 
-DEFAULT_NET_NAME=mcabBaseline-40.bin
+DEFAULT_NET_NAME=k64.nnue
 
 DEFAULT_EXE = $(OBJ_DIR)/Molybdenum
 DATAGEN_EXE = $(OBJ_DIR)/Datagen
diff --git a/src/Nets/k64.nnue b/src/Nets/k64.nnue
new file mode 100644
index 0000000..6b8c058
Binary files /dev/null and b/src/Nets/k64.nnue differ
diff --git a/src/nnue.h b/src/nnue.h
index 58b022b..c8cdc44 100644
--- a/src/nnue.h
+++ b/src/nnue.h
@@ -13,7 +13,7 @@ enum Toggle {
 };
 
 static const int INPUT_SIZE = 12 * 64;
-static const int L1_SIZE = 32;
+static const int L1_SIZE = 64;
 static const int OUTPUT_SIZE = 1;
 static const int NET_SIZE = 3;
 static const std::array<int, NET_SIZE> LAYER_SIZE = {INPUT_SIZE, L1_SIZE, OUTPUT_SIZE};
@@ -52,7 +52,7 @@ inline int screlu(int16_t input) {
 
 template<Color C> inline
 int index(int pc, int sq) {
-    int square = C ? sq : sq ^ 56;
+    int square = C ? sq ^ 7 : sq ^ 63;
     int piece  = C ? pc : makePiece(typeOf(pc), !colorOf(pc));
 
     return piece * 64 + square;