🧩Grid SUM Problems

An interactive mathematical puzzle game that challenges players to fill numbered grids while meeting specific sum requirements and avoiding duplicate digits.

⏱️

πŸ†You're Best Time Record:

# Grid Time Date

πŸ“‹ Game Rules:

  • Fill each box with a digit from 1-9
  • The sum of each row must equal the number to its left
  • The sum of each column must equal the number above it
  • No digit can be repeated in any row or column

🎯 Game Objective

Fill all cells in the grid with digits 1-9 such that:

  • Each row’s sum equals the target number shown on the left
  • Each column’s sum equals the target number shown at the top
  • No digit repeats within the same row or column

πŸ”’ Grid Sizes Available

  • 3Γ—3 Grid: Beginner level – Perfect for learning the rules
  • 4Γ—4 Grid: Intermediate level – More challenging combinations
  • 5Γ—5 Grid: Advanced level – Complex puzzle solving required

πŸ•ΉοΈ Game Features

Core Gameplay

  • Interactive Input: Click any cell to enter digits 1-9
  • Real-time Validation: Cells turn red when duplicate digits are detected
  • Smart Constraints: Only accepts valid digits, rejects invalid input
  • Auto-generated Puzzles: Each game creates a unique, solvable puzzle

Control Panel

  • πŸ” Check: Validates your solution and provides detailed feedback
  • 🏳️ Give Up: Reveals the correct solution when you’re stuck
  • πŸ”„ New Grid SUM: Generates a fresh puzzle to solve

Timer System

  • ⏱️ Automatic Timer: Starts when you make your first move
  • Smart Timing: Pauses when puzzle is completed or given up
  • Visual Indicators:
    • Green when running
    • Yellow when stopped
    • Displays in MM:SS format

Records Tracking

  • πŸ† Best Times Table: Records your fastest completion times
  • Multi-Grid Records: Separate tracking for each grid size
  • Top 10 Leaderboard: Keeps your best performances
  • Date Tracking: Shows when each record was achieved
  • Clear Function: Reset all records when needed

🎨 User Interface

  • Responsive Design: Adapts to different screen sizes
  • Modern Styling: Gradient backgrounds and smooth animations
  • Color-coded Feedback:
    • Red borders for invalid moves (duplicates)
    • Green highlighting for successful completion
    • Clean, intuitive layout

🧠 Educational Benefits

  • Mathematical Skills: Enhances addition and logical thinking
  • Pattern Recognition: Develops strategic planning abilities
  • Constraint Satisfaction: Teaches problem-solving within rules
  • Mental Arithmetic: Improves quick calculation skills

🎲 Game Mechanics

  • Procedural Generation: Each puzzle has a guaranteed unique solution
  • Progressive Difficulty: Larger grids provide exponentially more challenge
  • Instant Feedback: Real-time error detection and success validation
  • Hint System: “Give Up” feature serves as a learning tool

πŸ… Scoring & Progress

  • Time-based Challenge: Compete against your own best times
  • Difficulty Scaling: Different grid sizes offer varying point values
  • Achievement Tracking: Personal records motivate improvement
  • Session Persistence: Records maintained during play session

This game combines the satisfaction of number puzzles with modern web interactivity, making it perfect for casual brain training, educational purposes, or competitive puzzle solving among friends and family.