diff --git a/backend/.env.example b/backend/.env.example
index ec910fc..7eba8b4 100644
--- a/backend/.env.example
+++ b/backend/.env.example
@@ -12,4 +12,4 @@ CONNECTION_STRING=
 PORT=8080
 
 # path to the chess engine
-CHESS_ENGINE_PATH=
\ No newline at end of file
+CHESS_ENGINE_PATH=./engine/stockfish16.exe
\ No newline at end of file
diff --git a/backend/chessbot.js b/backend/chessbot.js
index 988d181..f98d1da 100644
--- a/backend/chessbot.js
+++ b/backend/chessbot.js
@@ -1,10 +1,7 @@
-const chess = require("chess.js");
 const { Engine } = require("node-uci");
 
-const engine = new Engine(
-    process.env.CHESS_ENGINE_PATH ||
-        "C:\\Users\\MOON\\Downloads\\stockfish-windows-x86-64-avx2\\stockfish\\stockfish-windows-x86-64-avx2.exe"
-);
+require("dotenv").config();
+const engine = new Engine(process.env.CHESS_ENGINE_PATH || "./engine/stockfish16.exe");
 
 engine
     .init()
diff --git a/backend/engine/stockfish16 b/backend/engine/stockfish16
new file mode 100644
index 0000000..b9cc8c2
Binary files /dev/null and b/backend/engine/stockfish16 differ