Chess Game (C++ OOP Project)

Overview

This is a console-based Chess game written in C++ as a personal project to practice:

• Object-Oriented Programming (OOP)
• Problem-solving
• Multi-file project organization
• Using a custom data structure in gameplay logic

The game follows real chess rules and uses a hidden stack for behind-the-scenes move validation. Players enter moves in standard algebraic coordinate notation (e.g., e2 e4) and play entirely in the console.

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Features

• Standard chess movement for King (Kg), Queen (Qn), Rook (Rk), Bishop (Bp), Knight (Kn), and Pawn (Pn).
• Special rules:
  • Castling
  • Pawn promotion
• Game ending conditions:
  • Check
  • Checkmate
  • Stalemate
  • Draw (two kings left)
• Hidden stack system to:
  • Simulate moves for legality checks
  • Roll back board state without affecting gameplay
• Colored output to distinguish White and Black pieces.

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🛠 How It Works

• Board Representation:
  Pieces*** board — a dynamic 8×8 array of Pieces*.

• Piece Classes:
  All chess pieces inherit from a base Pieces class (SubPieces.h).

• Stack:
  Stores move history internally for simulations:

  • Pushes when testing a move
  • Pops to restore the board if the move would leave the king in check
  • Used in checkmate and stalemate detection

• Move Translation:
  translate_move() converts moves like e2 e4 into coordinates and validates format.

• Main Game Loop (ChessMainFunction.cpp):

  • Alternates turns between White and Black
  • Displays board state
  • Prompts player for moves until game ends

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Project Structure

Chess/
├── Board.h / Board.cpp         # Board class and game logic
├── SubPieces.h                 # All chess piece classes and movement rules
├── Stack.h                     # Hidden stack for move simulation
├── ChessMainFunction.cpp       # Main game loop

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How to Play

1. Compile

With g++:

g++ Board.cpp SubPieces.cpp Stack.cpp ChessMainFunction.cpp -o chess

Or open the .sln in Visual Studio and build.

2. Run

./chess

3. Enter moves

Format:

e2 e4

• First coordinate = piece to move
• Second coordinate = destination square

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Example Board Output

This is what the board looks like in your console (piece codes: Rk, Kn, Bp, Qn, Kg, Pn):

   a  b  c  d  e  f  g  h
8 |Rk|Kn|Bp|Qn|Kg|Bp|Kn|Rk|  8
  -------------------------
7 |Pn|Pn|Pn|Pn|Pn|Pn|Pn|Pn|  7
  -------------------------
6 |  |  |  |  |  |  |  |  |  6
  -------------------------
5 |  |  |  |  |  |  |  |  |  5
  -------------------------
4 |  |  |  |  |  |  |  |  |  4
  -------------------------
3 |  |  |  |  |  |  |  |  |  3
  -------------------------
2 |Pn|Pn|Pn|Pn|Pn|Pn|Pn|Pn|  2
  -------------------------
1 |Rk|Kn|Bp|Qn|Kg|Bp|Kn|Rk|  1
   a  b  c  d  e  f  g  h

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Notes

• Uses system("cls") for clearing the console on Windows; change to system("clear") for Linux/macOS.
• The board constructor in Board.cpp currently has a test setup (few pieces only). Uncomment the full setup code for a standard chess starting position.
• The stack is internal only — not for player undo.

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👤 Author

Muhammad Basim Irfan Made to practice:

• C++ OOP design
• Game logic implementation
• Data structure usage in game rules
• Multi-file project structure