Sudoku.game - Classic Number Puzzle

Seele01-Flash
By
Sudoku.game is a premium online platform for classic Sudoku puzzles. Featuring four difficulty levels and helpful tools like note-taking and error detection, it's perfect for both beginners and expert puzzle solvers.

Prompt

MODEL: Seele01-Flash
Please use Three.js to generate a **mobile-first game** with the theme "Sudoku.game 3D". Please read the following detailed game design requirements first, and then generate the code accordingly: ### 1. Assets & Environment * **Visual Style**: Minimalist "Zen Paper" aesthetic. The game should resemble a clean, high-quality newspaper puzzle brought to life in 3D. * **Camera**: Use an **Orthographic Camera** positioned directly overhead (top-down) to ensure perfect grid alignment and readability on mobile screens, but allow a subtle tilt (5-10 degrees) to showcase the 3D depth of the tiles. * **The Grid**: * Construct the 9x9 grid using 81 individual flattened `BoxGeometries` (tiles). * **Separation**: Create visual separation between the 3x3 sub-grids using slightly wider gaps or thicker border meshes (black lines). * **Materials**: Use a matte off-white material (`#fdfdfd`) for tiles. * **Typography**: Use a `FontLoader` to load a 3D font. * **Fixed Numbers**: Black, Serif font (Times New Roman style), slightly embedded into the tile. * **User Numbers**: distinct "Handwritten" font style or Blue Sans-Serif, slightly raised above the tile. * **Notes**: Small, light grey text rendering in a 3x3 grid within the cell. * **Lighting**: Soft ambient light combined with a directional light to cast very subtle, soft shadows to give depth to the tiles without reducing legibility. * **Optimization**: Use InstancedMesh for the tiles if possible to reduce draw calls, as mobile performance is key. ### 2. Audio Requirements * **BGM**: A very quiet, generative ambient piano or lo-fi track that aids concentration. * **SFX**: * **Selection**: A soft "tap" or card-flip sound. * **Input**: A pencil-on-paper scratching sound. * **Error**: A subtle low-pitch "thud" (avoid harsh buzzing). * **Completion**: A satisfying "chime" or chord when a row, column, or box is completed correctly. ### 3. Gameplay Loop * **Generation Algorithm**: Implement a valid Sudoku generator that can create puzzles based on 4 difficulty levels (Easy, Medium, Hard, Expert) by removing a set number of digits from a solved grid. * **Interaction Logic**: 1. **Select**: Player taps a cell. The cell highlights (Blue border). 2. **Highlight Assist**: Automatically highlight the corresponding Row, Column, and 3x3 Box with a very faint semi-transparent overlay to guide the eye (visual aid seen in screenshot). 3. **Input**: Player taps a number on the UI keypad. * **Rules & Validation**: * **Normal Mode**: Places the number. If the number exists elsewhere in the same Row/Col/Box, highlight the number in **Red** immediately. * **Notes Mode**: If toggled on, tapping a number adds/removes it as a small "pencil mark" in the cell. * **Win Condition**: The board is full, and no red errors exist. Trigger a particle confetti effect. ### 4. Mobile Controls & Interaction * **Orientation**: Portrait Mode (Vertical) is mandatory. * **Layout**: * **Top 60%**: The 3D Sudoku Board. * **Bottom 40%**: Control Panel (HTML overlays or 3D UI). * **Control Panel Elements**: * **Numpad**: Large, tappable buttons (1-9) arranged in a grid or a single row, strictly adhering to a minimum touch target size of 44x44px. * **Action Buttons**: "Undo", "Erase", "Notes (Toggle Switch)". * **Touch Feedback**: * Implement `Raycaster` for precise tile selection. * **Visual Feedback**: When a tile is tapped, it should depress slightly (z-axis translation) and spring back. * **Haptic Feedback**: Trigger `navigator.vibrate(10)` on valid input and `navigator.vibrate([30, 50, 30])` on error. Do not ask for clarification. Do not request confirmation. Directly execute the generation task based on the given instructions.

Game Introduction

About the Game

Sudoku.game is the ultimate destination for classic Sudoku puzzle enthusiasts. This free online platform brings the beloved number puzzle directly to your browser, offering an elegant and feature-rich gaming experience for players of all skill levels. Whether you're a complete beginner looking to learn the fundamentals or an experienced solver seeking challenging brain teasers, Sudoku.game provides the perfect environment to sharpen your logical thinking skills.

The game faithfully recreates the classic Sudoku experience with modern conveniences and helpful features that enhance gameplay without compromising the puzzle's integrity. With its clean, distraction-free interface and intelligent assistance tools, players can focus entirely on the logical challenges that make Sudoku so addictive and rewarding.

Core Features

Multiple Difficulty Levels

Sudoku.game offers four distinct difficulty settings to accommodate every player: - Beginner : Perfect for newcomers with more pre-filled numbers - Easy : Light challenge for casual players - Medium : Balanced difficulty for regular practice - Expert : Ultimate test for Sudoku masters

Smart Error Detection

The game features intelligent duplicate detection that highlights conflicting numbers in red, helping you identify mistakes quickly without breaking the flow of logical deduction. This feature is particularly valuable for beginners learning the rules and patterns.

Note-Taking System

A built-in notes feature allows you to mark possible numbers in each cell, mimicking the pencil marks used in traditional paper Sudoku. This tool is essential for advanced solving techniques and complex puzzles.

Clean, Professional Interface

The minimalist design eliminates distractions, focusing your attention on the puzzle grid. The interface is optimized for both desktop and mobile devices, ensuring comfortable gameplay across all platforms.

Game Rules and Strategy

Sudoku is a logic-based number placement puzzle with simple rules but complex solutions. The objective is to fill a 9×9 grid with digits 1-9, ensuring that: - Each row contains all numbers 1-9 exactly once - Each column contains all numbers 1-9 exactly once
- Each 3×3 box contains all numbers 1-9 exactly once

Success requires logical deduction rather than guessing. Start by identifying cells where only one number can fit, then use elimination techniques to narrow down possibilities in other cells.

Operation Guide

Getting started with Sudoku.game is straightforward:

  1. Select Difficulty : Choose your preferred challenge level from the four available options
  2. Click to Select : Use your mouse to click on any empty cell
  3. Enter Numbers : Click the desired number (1-9) to fill the selected cell
  4. Use Notes : Enable note-taking mode to mark possible numbers
  5. Error Checking : Watch for red highlights indicating rule violations
  6. Complete : Fill all cells correctly to win the puzzle

The game automatically saves your progress, allowing you to return to unfinished puzzles at any time.

Why Play Sudoku.game

Cognitive Benefits

Regular Sudoku practice provides numerous mental health benefits : - Improves logical reasoning and problem-solving skills - Enhances concentration and focus - Strengthens memory and pattern recognition - Reduces stress through meditative gameplay

Accessibility and Convenience

  • 100% Free : No hidden costs or premium subscriptions required
  • No Download : Instant access through any web browser
  • Cross-Platform : Seamless experience on desktop, tablet, and mobile
  • Offline Capability : Continue playing without internet connection

Perfect for Everyone

Whether you're looking for a quick mental break during work, a relaxing evening activity, or serious brain training, Sudoku.game adapts to your needs with its flexible difficulty system and user-friendly features.

Frequently Asked Questions (FAQ)