diff --git a/src/core/board.h b/src/core/board.h
index bd865d5..af6ad6e 100644
--- a/src/core/board.h
+++ b/src/core/board.h
@@ -271,8 +271,6 @@ namespace core {
         void load(const std::string &fen) {
             board_clear();
 
-            logger.info("Board::load", "Loading fen", fen);
-
             std::stringstream ss(fen);
             std::string pieces, stm, rights, ep, move50;
             ss >> pieces >> stm >> rights >> ep >> move50;
@@ -295,7 +293,7 @@ namespace core {
                 state.stm = BLACK;
                 state.hash.xor_stm();
             } else {
-                logger.error("Board::load", "Invalid stm string!");
+                throw std::runtime_error("Invalid fen string: " + fen);
             }
 
             state.rights = CastlingRights(rights);
@@ -310,8 +308,6 @@ namespace core {
             if (state.ep != NULL_SQUARE) {
                 state.hash.xor_ep(state.ep);
             }
-
-            logger.info("Board::load", "Finished loading fen");
         }
 
         [[nodiscard]] std::string get_fen() const {
@@ -440,8 +436,6 @@ namespace core {
 
         void board_clear() {
 
-            logger.info("Board::board_clear", "Clearing board...");
-
             for (Bitboard &i : bb_pieces) i = 0;
             for (Bitboard &i : bb_colors) i = 0;
 
@@ -451,8 +445,6 @@ namespace core {
 
             states.clear();
             states.emplace_back();
-
-            logger.info("Board::board_clear", "Board has been cleared");
         }
     };
 
diff --git a/src/main.cpp b/src/main.cpp
index 3808495..27fe480 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -32,20 +32,10 @@ namespace search {
     Depth lmr_reductions[200][MAX_PLY + 1];
 }
 
-Logger logger;
-
 void init_all() {
-    logger.init("log.txt");
-    logger.info("init_all", "Logger has been initialized");
-
     core::init_masks();
-    logger.info("init_all", "Bitboard masks have been initialized");
-
     core::init_magic();
-    logger.info("init_all", "Magic has been initialized");
-
     search::init_lmr();
-    logger.info("init_all", "LMR has been initialized");
 }
 
 int main(int argc, char *argv[]) {
@@ -66,6 +56,5 @@ int main(int argc, char *argv[]) {
         protocol.start();
     }
 
-    logger.info("main", "Exiting with return code 0");
     return 0;
 }
\ No newline at end of file
diff --git a/src/network/data_parser.h b/src/network/data_parser.h
index 2b57976..645945d 100644
--- a/src/network/data_parser.h
+++ b/src/network/data_parser.h
@@ -42,7 +42,7 @@ namespace nn {
             file.open(path, std::ios::in);
 
             if (!file.is_open()) {
-                logger.print("Unable to open:", path);
+                Logger("Unable to open:", path);
                 throw std::runtime_error("Unable to open: " + path);
             }
         }
diff --git a/src/network/network.h b/src/network/network.h
index b3e3f81..dc30719 100644
--- a/src/network/network.h
+++ b/src/network/network.h
@@ -52,7 +52,7 @@ namespace nn {
         Network(const std::string &network_path) {
             std::ifstream file(network_path, std::ios::in | std::ios::binary);
             if (!file.is_open()) {
-                logger.print("Unable to open: ", network_path);
+                Logger("Unable to open: ", network_path);
                 randomize();
                 return;
             }
@@ -61,14 +61,14 @@ namespace nn {
             file.read(reinterpret_cast<char *>(&magic), sizeof(magic));
 
             if (magic != MAGIC) {
-                logger.print("Invalid network file: ", network_path, " with magic: ", magic);
+                Logger("Invalid network file: ", network_path, " with magic: ", magic);
                 throw std::invalid_argument("Invalid network file with magic: " + std::to_string(magic));
             }
 
             l0.load_from_file(file);
             l1.load_from_file(file);
 
-            logger.print("Loaded network file: ", network_path);
+            Logger("Loaded network file: ", network_path);
         }
 
         Network() {
@@ -90,7 +90,7 @@ namespace nn {
         void write_to_file(const std::string &output_path) {
             std::ofstream file(output_path, std::ios::out | std::ios::binary);
             if (!file.is_open()) {
-                logger.print("Unable to open:", output_path);
+                Logger("Unable to open:", output_path);
                 throw std::runtime_error("Unable to open: " + output_path);
             }
 
@@ -107,7 +107,7 @@ namespace nn {
         void quantize(const std::string &output_path) {
             std::ofstream file(output_path, std::ios::out | std::ios::binary);
             if (!file.is_open()) {
-                logger.print("Unable to open:", output_path);
+                Logger("Unable to open:", output_path);
                 throw std::runtime_error("Unable to open: " + output_path);
             }
 
diff --git a/src/network/nnue.h b/src/network/nnue.h
index dfb0b13..45fd3e6 100644
--- a/src/network/nnue.h
+++ b/src/network/nnue.h
@@ -43,7 +43,7 @@ namespace nn {
             int offset = sizeof(int);
 
             if (magic != MAGIC) {
-                logger.print("Invalid default network file with magic", magic);
+                Logger("Invalid default network file with magic", magic);
                 throw std::invalid_argument("Invalid default network file with magic" + std::to_string(magic));
             }
 
diff --git a/src/network/train.h b/src/network/train.h
index c187fd6..2ee9f37 100644
--- a/src/network/train.h
+++ b/src/network/train.h
@@ -218,7 +218,7 @@ namespace nn {
         }
 
         void index_training_data(const std::string &training_data) {
-            logger.print("Indexing training data...");
+            Logger("Indexing training data...");
 
             entry_count = 0;
 
@@ -229,7 +229,7 @@ namespace nn {
             }
             file.close();
 
-            logger.print("Found", entry_count, "positions");
+            Logger("Found", entry_count, "positions");
         }
     };
 } // namespace nn
\ No newline at end of file
diff --git a/src/search/search_thread.h b/src/search/search_thread.h
index 742d84a..f8bb805 100644
--- a/src/search/search_thread.h
+++ b/src/search/search_thread.h
@@ -128,7 +128,7 @@ namespace search {
             if (shared.uci_mode) {
                 int64_t elapsed_time = shared.tm.get_elapsed_time();
 
-                logger.print("info", "depth", int(depth), "seldepth", int(max_ply),
+                Logger("info", "depth", int(depth), "seldepth", int(max_ply),
                              "nodes", shared.node_count,
                              "score", score_to_string(score), "time", elapsed_time,
                              "nps", calculate_nps(elapsed_time, shared.node_count),
@@ -140,7 +140,7 @@ namespace search {
             if (id == 0) {
                 shared.is_searching = false;
                 if (shared.uci_mode) {
-                    logger.print("bestmove", shared.best_move);
+                    Logger("bestmove", shared.best_move);
                 }
             }
         }
diff --git a/src/selfplay/selfplay.h b/src/selfplay/selfplay.h
index 3f9917c..2726c0d 100644
--- a/src/selfplay/selfplay.h
+++ b/src/selfplay/selfplay.h
@@ -123,7 +123,7 @@ namespace selfplay {
 
     void combine_data(const std::string &path, const std::string &output_file) {
 
-        logger.print("Combining files...");
+        Logger("Combining files...");
 
         std::ofstream file(output_file, std::ios::app | std::ios::out);
         for (const auto &entry : std::filesystem::directory_iterator(path)) {
@@ -136,7 +136,7 @@ namespace selfplay {
         }
         file.close();
 
-        logger.print("Finished combining");
+        Logger("Finished combining");
     }
 
     void start_generation(const search::Limits &limits, const std::string &book_path, const std::string &output_path, unsigned int thread_count, int dropout) {
@@ -145,7 +145,7 @@ namespace selfplay {
 
         // TODO argument for network file
         if (!std::filesystem::exists(book_path)) {
-            logger.print("Invalid book path: " + book_path);
+            Logger("Invalid book path: " + book_path);
             throw std::invalid_argument("Invalid book path: " + book_path);
         }
 
@@ -176,7 +176,7 @@ namespace selfplay {
 
         std::vector<std::thread> threads;
 
-        logger.print("Starting", thread_count, "threads...");
+        Logger("Starting", thread_count, "threads...");
         for (unsigned int id = 0; id < thread_count; id++) {
             std::vector<std::string> fens;
             for (unsigned int i = id; i < starting_fens.size(); i += thread_count) {
@@ -225,7 +225,7 @@ namespace selfplay {
                 th.join();
         }
 
-        logger.print("Finished generating data");
+        Logger("Finished generating data");
 
         combine_data(directory_path, output_path);
     }
diff --git a/src/uci/uci.h b/src/uci/uci.h
index a025558..51e7baf 100644
--- a/src/uci/uci.h
+++ b/src/uci/uci.h
@@ -79,7 +79,7 @@ namespace uci {
             greetings();
         });
         commands.emplace_back("isready", [&](context tokens) {
-            logger.print("readyok");
+            Logger("readyok");
         });
         commands.emplace_back("position", [&](context tokens) {
             parse_position(tokens);
@@ -90,7 +90,7 @@ namespace uci {
         commands.emplace_back("eval", [&](context tokens) {
             nn::NNUE network{};
             network.refresh(board.to_features());
-            logger.print("Eval:", network.evaluate(board.get_stm()));
+            Logger("Eval:", network.evaluate(board.get_stm()));
         });
         commands.emplace_back("gen", [&](context tokens) {
             search::Limits limits;
@@ -129,7 +129,7 @@ namespace uci {
         commands.emplace_back("perft", [&](context tokens) {
             int depth = find_element<int>(tokens, "perft").value_or(5);
             U64 node_count = test::perft<true, false>(board, depth);
-            logger.print("Total node count: ", node_count);
+            Logger("Total node count: ", node_count);
         });
         commands.emplace_back("go", [&](context tokens) {
             search::Limits limits = parse_limits(tokens);
@@ -155,8 +155,6 @@ namespace uci {
                 }
             }
         });
-
-        logger.info("UCI::register_commands", "Registered ", commands.size(), "commands");
     }
 
     void UCI::register_options() {
@@ -182,8 +180,6 @@ namespace uci {
 
         board.load(STARTING_FEN);
 
-        logger.info("UCI::start", "UCI Loop has started!");
-
         while (should_continue) {
             std::string line;
             getline(std::cin, line);
@@ -192,8 +188,6 @@ namespace uci {
                 break;
             }
 
-            logger.info("UCI::start", "in>", line);
-
             std::vector<std::string> tokens = convert_to_tokens(line);
 
             for (const Command &cmd : commands) {
@@ -205,12 +199,12 @@ namespace uci {
     }
 
     void UCI::greetings() {
-        logger.print("id", "name", "WhiteCore", VERSION);
-        logger.print("id author Balazs Szilagyi");
+        Logger("id", "name", "WhiteCore", VERSION);
+        Logger("id author Balazs Szilagyi");
         for (const Option &opt : options) {
-            logger.print(opt.to_string());
+            Logger(opt.to_string());
         }
-        logger.print("uciok");
+        Logger("uciok");
     }
 
     search::Limits UCI::parse_limits(UCI::context tokens) {
@@ -246,7 +240,6 @@ namespace uci {
         for (; idx < tokens.size(); idx++) {
             core::Move move = move_from_string(board, tokens[idx]);
             if (move == core::NULL_MOVE) {
-                logger.error("load_position", "Invalid move", tokens[idx]);
                 break;
             } else {
                 board.make_move(move);
@@ -273,7 +266,6 @@ namespace uci {
                 return opt.get_value<T>();
             }
         }
-        logger.error("UCI::get_option", "Unable to find option", name);
         throw std::invalid_argument("UCI::get_option(): unable to find option " + name);
     }
 
diff --git a/src/utils/bench.h b/src/utils/bench.h
index 1b1e053..3cb2e60 100644
--- a/src/utils/bench.h
+++ b/src/utils/bench.h
@@ -78,5 +78,5 @@ void run_bench() {
     int64_t end_time = now();
     int64_t elapsed_time = end_time - start_time + 1;
     int64_t nps = calculate_nps(elapsed_time, nodes);
-    logger.print(nodes, "nodes", nps, "nps");
+    Logger(nodes, "nodes", nps, "nps");
 }
diff --git a/src/utils/logger.h b/src/utils/logger.h
index df68cf7..c504fe7 100644
--- a/src/utils/logger.h
+++ b/src/utils/logger.h
@@ -17,70 +17,27 @@
 
 #pragma once
 
-#include <fstream>
 #include <iostream>
-#include <string>
+#include <sstream>
 
-// #define LOGGING
-
-static void exception_handler();
-
-struct Logger {
-
-    std::ofstream file;
-
-    Logger() = default;
-
-    void init(const std::string &filename) {
-#ifdef LOGGING
-        file.open(filename, std::ios::out);
-#endif
-        std::set_terminate(exception_handler);
+class Logger {
+public:
+    template<typename... Args>
+    explicit Logger(Args... args) {
+        print(args...);
+        std::cout << ss.str() << std::flush;
     }
 
     template<typename T, typename... Args>
     void print(T a, Args... args) {
-        std::cout << a << " ";
+        ss << a << " ";
         print(args...);
     }
 
     void print() {
-        std::cout << std::endl;
+        ss << "\n";
     }
 
-    template<typename T, typename... Args>
-    void info(T a, Args... args) {
-#ifdef LOGGING
-        file << "[INFO] " << a << "(): ";
-        log(args...);
-#endif
-    }
-
-    template<typename T, typename... Args>
-    void error(T a, Args... args) {
-#ifdef LOGGING
-        file << "[INFO] " << a << "(): ";
-        log(args...);
-#endif
-    }
-
-    template<typename T, typename... Args>
-    void log(T a, Args... args) {
-        file << a << " ";
-        log(args...);
-    }
-
-    void log() {
-        file << std::endl;
-    }
+private:
+    std::stringstream ss;
 };
-
-extern Logger logger;
-
-static void exception_handler() {
-    if (logger.file.is_open()) {
-        logger.error("Logger", "exception_handler was called: closing log file and aborting");
-        logger.file.close();
-    }
-    std::abort();
-}
diff --git a/src/utils/utilities.h b/src/utils/utilities.h
index 1bdc063..85bf8fa 100644
--- a/src/utils/utilities.h
+++ b/src/utils/utilities.h
@@ -57,7 +57,7 @@ Square square_from_string(const std::string &s) {
     } else if ('A' <= s[0] && s[0] <= 'Z') {
         return Square((s[0] - 'A') + (s[1] - '1') * 8);
     } else {
-        logger.error("square_from_string", "Invalid string: " + s);
+        throw std::runtime_error("Invalid square string: " + s);
     }
 
     return NULL_SQUARE;
@@ -80,7 +80,7 @@ Piece piece_from_char(char c) {
         piece.color = WHITE;
         c += 32;
     } else {
-        logger.error("piece_from_char", "Invalid char");
+        throw std::runtime_error("Invalid piece char: " + std::string(c, 1));
     }
 
     switch (c) {
@@ -103,7 +103,7 @@ Piece piece_from_char(char c) {
             piece.type = KING;
             break;
         default:
-            logger.error("piece_from_char", "Invalid char!");
+            throw std::runtime_error("Invalid piece char: " + std::string(c, 1));
     }
     return piece;
 }