Reworked the evaluation function. Improved it's speed, certain eval f…

…eatures and fixed some bugs.

CMakeLists.txt

@@ -3,11 +3,11 @@ project(Zagreus)
 
 set(CMAKE_CXX_STANDARD 20)
 #set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++ -std=c++20 -Wno-error=unused-command-line-argument -Wall -Wextra -Wuninitialized -g -gcodeview -flto -Wl,--pdb=Zagreus.pdb")
-set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++ -std=c++20 -Wno-error=unused-command-line-argument -Wall -Wextra -Wuninitialized -fuse-ld=lld -pthread -flto")
+set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++ -std=c++20 -fuse-ld=lld -pthread -flto")
 
-#set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Og -march=native -Wall -Wextra -g -gcodeview -ftrivial-auto-var-init=uninitialized -Wno-error=unused-command-line-argument -Wuninitialized -pthread -std=c++20 -Wl,--pdb=Zagreus.pdb")
-#set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Ofast -march=x86-64 -mbmi -mlzcnt -Wall -Wextra -Wuninitialized -fuse-ld=lld -std=c++20 -pthread -flto")
-set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Ofast -march=native -Wall -Wextra -Wuninitialized -fuse-ld=lld -std=c++20 -pthread -flto")
+#set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Og -march=native -Wall -Wextra -Wfatal-errors -g -gcodeview -ftrivial-auto-var-init=uninitialized -Wno-error=unused-command-line-argument -Wuninitialized -pthread -std=c++20 -Wl,--pdb=Zagreus.pdb")
+#set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Ofast -march=x86-64 -mbmi -mlzcnt -Wall -Wextra -Wfatal-errors -Wuninitialized -fuse-ld=lld -std=c++20 -pthread -flto")
+set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Ofast -march=native -Wall -Wextra -Wuninitialized -Wfatal-errors -fuse-ld=lld -std=c++20 -pthread -flto")
 
 file(GLOB inc_zagreus "*.h" "*.cpp")
 file(GLOB inc_senjo "senjo/*.h" "senjo/*.cpp")

README.md

@@ -4,22 +4,34 @@ Zagreus is a constantly changing engine with hopefully an increase in elo every
 
 You can download binaries here: https://github.com/Dannyj1/ZagreusEngine/releases
 
+This engine requires a GUI that supports the UCI (Universal Chess Interface) protocol to use it. I personally use [CuteChess](https://cutechess.com/).
+
 # Features
 - Bitboard board representation with Plain Magic Bitboards for sliding piece move generation
 - Principal Variation Search with Alpha-Beta pruning
 - Quiescence Search with delta pruning and SEE move ordering
 - Move ordering using MVV/LVA, killer moves, history heuristic, countermove heuristic
 - Transposition Table
-- Evaluation consisting of material balance, mobility, connectivity, king safety, piece square tables and more
+- Evaluation consisting of material balance, mobility, very simple connectivity, king safety, piece square tables and more
 - Null Move Pruning
 - Late Move Reduction
 - And more! This list is constantly growing and changing, but it is difficult to keep track of all features and changes.
 
 # Credits
 Thanks to:
-- zd3nik for the [Senjo UCI Adapter](https://github.com/zd3nik/SenjoUCIAdapter), which I slightly modified
+- [zd3nik](https://github.com/zd3nik) for the [Senjo UCI Adapter](https://github.com/zd3nik/SenjoUCIAdapter), which I slightly modified
 - The [Chessprogramming wiki](https://www.chessprogramming.org/Main_Page) contributors for all the information about chess programming
 
 
 # License
-This program is licensed under the GNU General Public License v3.0. For full details, please read the [LICENSE](https://github.com/Dannyj1/ZagreusEngine/blob/master/LICENSE) file.
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Please read the [LICENSE](https://github.com/Dannyj1/ZagreusEngine/blob/master/LICENSE) file for the full details.

bitboard.cpp

@@ -254,8 +254,7 @@ namespace Zagreus {
     bool Bitboard::isSemiOpenFileLenient(int square, PieceColor color) {
         uint64_t fileMask =
                 rayAttacks[Direction::NORTH][square] | rayAttacks[Direction::SOUTH][square] | (1ULL << square);
-        uint64_t ownOccupied = getPieceBoard(
-                color == PieceColor::WHITE ? PieceType::WHITE_PAWN : PieceType::BLACK_PAWN);
+        uint64_t ownOccupied = getPieceBoard(PieceType::WHITE_PAWN + color);
 
         return fileMask == (fileMask & ownOccupied);
     }

engine.cpp

@@ -115,11 +115,11 @@ namespace Zagreus {
     }
 
     std::string Engine::getEngineVersion() {
-        return "v0.4";
+        return "v0.5";
     }
 
     std::string Engine::getAuthorName() {
-        return "Dannyj1";
+        return "Danny Jelsma";
     }
 
     std::string Engine::getEmailAddress() {