diff --git a/engine/src/boardsquare.rs b/engine/src/boardsquare.rs
new file mode 100644
index 0000000..b4613fe
--- /dev/null
+++ b/engine/src/boardsquare.rs
@@ -0,0 +1,32 @@
+
+pub struct BoardSquare {
+  pub x: usize,
+  pub y: usize
+}
+
+impl BoardSquare {
+
+  pub fn new() -> Self {
+    return Self{
+      x: 0,
+      y: 0
+    };
+  }
+
+  pub fn from_coord(x: usize, y: usize) -> Self {
+    
+    #[cfg(debug_assertions)]
+    {
+      if x > 7 {
+        println!("Warning: x coordinate of square is bigger than 7, it might not be on the board!");
+      }
+      if y > 7 {
+        println!("Warning: y coordinate of square is bigger than 7, it might not be on the board!");
+      }
+    }
+    return Self {
+      x: x,
+      y: y
+    };
+  }
+}
\ No newline at end of file
diff --git a/engine/src/chessmove.rs b/engine/src/chessmove.rs
new file mode 100644
index 0000000..cf92de1
--- /dev/null
+++ b/engine/src/chessmove.rs
@@ -0,0 +1,71 @@
+use crate::piecetype;
+
+use super::boardsquare::BoardSquare;
+use super::piecetype::PieceType;
+use super::movetype::MoveType;
+
+
+pub struct ChessMove {
+  pub move_type: MoveType,
+  pub piece_type: PieceType,
+  pub from_square: BoardSquare,
+  pub to_square: BoardSquare,
+  pub rook_from: BoardSquare,
+  pub rook_to: BoardSquare,
+  pub promotion_piece: Option<PieceType>
+}
+
+impl ChessMove {
+
+  pub fn quiet(
+    piece_type: PieceType,
+    from_square: BoardSquare,
+    to_square: BoardSquare,
+    promotion_piece: Option<PieceType>
+  ) -> Self {
+    return Self {
+      move_type: MoveType::Quiet,
+      piece_type: piece_type,
+      from_square: from_square,
+      to_square: to_square,
+      rook_from: BoardSquare::new(),
+      rook_to: BoardSquare::new(),
+      promotion_piece: promotion_piece
+    }
+  }
+
+  pub fn capture(
+    piece_type: PieceType,
+    from_square: BoardSquare,
+    to_square: BoardSquare,
+    promotion_piece: Option<PieceType>
+  ) -> Self {
+    return Self {
+      move_type: MoveType::Capture,
+      piece_type: piece_type,
+      from_square: from_square,
+      to_square: to_square,
+      rook_from: BoardSquare::new(),
+      rook_to: BoardSquare::new(),
+      promotion_piece: promotion_piece
+    }
+  }
+
+  pub fn castle(
+    piece_type: PieceType,
+    from_square: BoardSquare,
+    to_square: BoardSquare,
+    rook_from: BoardSquare,
+    rook_to: BoardSquare
+  ) -> Self {
+    return Self {
+      move_type: MoveType::Quiet,
+      piece_type: piece_type,
+      from_square: from_square,
+      to_square: to_square,
+      rook_from: rook_from,
+      rook_to: rook_to,
+      promotion_piece: None
+    }
+  }
+}
\ No newline at end of file
diff --git a/engine/src/gameend.rs b/engine/src/gameend.rs
new file mode 100644
index 0000000..43dd158
--- /dev/null
+++ b/engine/src/gameend.rs
@@ -0,0 +1,6 @@
+
+pub enum GameEnd {
+  WhiteWon(String),
+  BlackWon(String),
+  Draw(String)
+}
\ No newline at end of file
diff --git a/engine/src/lib.rs b/engine/src/lib.rs
new file mode 100644
index 0000000..b7bc67b
--- /dev/null
+++ b/engine/src/lib.rs
@@ -0,0 +1,24 @@
+mod bitboard;
+pub mod chessmove;
+pub mod piecetype;
+pub mod boardsquare;
+pub mod movetype;
+pub mod gameend;
+
+use chessmove::ChessMove;
+use gameend::GameEnd;
+
+pub fn get_available_moves(fen: &str) -> Vec<ChessMove> {
+  println!("get_available_moves answered");
+  return vec![];
+}
+
+pub fn is_game_over(fen: &str) -> Option<GameEnd> {
+  println!("is_game_over answered");
+  return None;
+}
+
+pub fn get_board_after_move(fen: &str, chess_move: &ChessMove) -> String {
+  println!("get_board_after_move answered");
+  return String::from("rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1");
+}
\ No newline at end of file
diff --git a/engine/src/movetype.rs b/engine/src/movetype.rs
new file mode 100644
index 0000000..ec045a5
--- /dev/null
+++ b/engine/src/movetype.rs
@@ -0,0 +1,7 @@
+
+pub enum MoveType {
+  Quiet,
+  Capture,
+  Castle,
+  EnPassant
+}
\ No newline at end of file
diff --git a/engine/src/piecetype.rs b/engine/src/piecetype.rs
new file mode 100644
index 0000000..3eb23f1
--- /dev/null
+++ b/engine/src/piecetype.rs
@@ -0,0 +1,15 @@
+
+pub enum PieceType {
+  WhitePawn,
+  WhiteKnight,
+  WhiteBishop,
+  WhiteRook,
+  WhiteQueen,
+  WhiteKing,
+  BlackPawn,
+  BlackKnight,
+  BlackBishop,
+  BlackRook,
+  BlackQueen,
+  BlackKing
+}
\ No newline at end of file