🎮 Ropes & Ladders with Smart AI

A modern twist on the classic Ropes & Ladders game featuring intelligent AI with strategic rope placement mechanics.

🎯 Game Mechanics

• Interactive GUI with modern pygame interface
• Strategic rope placement - players can place ropes to push opponents back
• Smart ladders - climb up instantly when stepping on ladder base
• No luck involved - pure strategy and skill!

🤖 Advanced AI System

• MinimaxPruning Algorithm with Alpha-Beta pruning
• Intelligent rope placement with game phase awareness
• Adaptive strategy - patient in early game, aggressive when threatened
• Optimized performance with transposition tables and iterative deepening

🎮 Game Modes

• Human vs AI - Challenge the intelligent opponent
• AI vs AI - Watch two AIs compete strategically
• Human vs Human - Play against friends locally

🚀 Quick Start

Prerequisites

• Python 3.8 or higher
• pygame library

Installation

# Clone the repository
git clone https://github.com/yourusername/RopesAndLadders.git
cd RopesAndLadders

# Install dependencies
pip install pygame

# Run the game
python ropes_ladders_gui.py

🎯 How to Play

Objective

Be the first player to reach the prize (⭐) at the top of the board!

Controls

• Movement: Click on adjacent cells to move your player
• Rope Placement: Click "Place Rope" and select rope type and position
• Strategic Timing: Use ropes wisely - you have limited rope obstacles!

Game Elements

• 🔵 Player 1 (Blue) - Human player
• 🔴 Player 2 (Red) - AI opponent
• ⭐ Prize - Goal position at the top
• 🆙 Ladders - Climb up when stepped on
• 🎗️ Ropes - Push opponents back when triggered
• 🧱 Walls - Blocked positions

🧠 AI Strategy

The AI uses a sophisticated strategy system:

Game Phase Awareness

• Early Game: Focuses on movement, conserves ropes
• Mid Game: Moderate rope usage, strategic positioning
• Late Game: Aggressive rope placement when threatened

Smart Rope Placement

• Optimal Distance: Places ropes 2-4 cells from opponent normally
• Urgent Defense: Places ropes 1 cell ahead when opponent is about to win
• Path Blocking: Prioritizes ropes that block opponent's path to prize
• Conservation: Avoids using all ropes at once

Advanced Features

• Alpha-Beta Pruning: Eliminates poor moves early
• Transposition Tables: Caches evaluated positions
• Iterative Deepening: Searches deeper when time allows
• Oscillation Prevention: Avoids getting stuck in movement loops

📁 Project Structure

RopesAndLadders2/
├── ropes_ladders_gui.py      # Main GUI application
├── ropes_ladders_game.py     # Core game logic and AI wrapper
├── minimax_pruning.py         # Advanced AI implementation
├── README.md                  # This file
└── .gitignore                 # Git ignore rules

🔧 Technical Details

Core Classes

• GameState: Manages board state, player positions, and game rules
• MinimaxPruning: Advanced AI with strategic decision making
• OptimizedMinimaxAgent: Wrapper for backward compatibility
• RopesLaddersGUI: Pygame-based graphical interface

AI Configuration

• Search Depth: 5 levels (configurable)
• Time Limit: 3 seconds per move
• Evaluation Weights: Optimized for strategic play
• Performance: ~1000 nodes evaluated per move

Performance Metrics

• Average AI Response: 0.3-0.5 seconds
• Pruning Efficiency: 50+ branches pruned per search
• Memory Usage: Optimized with transposition tables

🙏 Acknowledgments

• Built with Python and pygame
• AI implementation uses Minimax algorithm with Alpha-Beta pruning
• Inspired by classic ropes & Ladders with modern strategic elements

🔗 Links

YouTube Videos of The Project

• Presentation - https://www.youtube.com/watch?v=-ZAQ_IMgv_E&ab_channel=DanGutman
• Gameplay - https://www.youtube.com/watch?v=2TRb9SFhPsM&t=208s&ab_channel=DanGutman

📄 Documentation

SRS Document

• https://github.com/Dangutman98/RopesAndLadders/blob/main/SRS.doc

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Enjoy strategic gameplay with intelligent AI! 🎮🤖