Tetris Game

A simplified version of the classic Tetris game, challenging users to complete at least one line to verify they are human. This game tests spatial awareness and decision-making abilities.

Game Mechanics

• Control falling blocks to create complete horizontal lines
• Rotate and position pieces to fit efficiently
• Clear the required number of lines to verify

Configuration

const captcha = new CaptchaSDK({
  gameType: 'tetris',
  difficulty: 'medium',
  config: {
    fallSpeed: 5,
    targetLines: 2,
    pieceTypes: ['I', 'J', 'L', 'O', 'S', 'T', 'Z']
  }
});

Parameters

• fallSpeed: Speed at which pieces fall (1-10)
• targetLines: Number of lines required to complete verification (1-3)
• pieceTypes: Types of pieces to include in the game

Difficulty Levels

Easy

• Slower piece falling speed
• More predictable piece sequence
• Target: 1 line to clear
• Larger game board

Medium

• Moderate falling speed
• Standard piece distribution
• Target: 2 lines to clear
• Standard game board size

Hard

• Faster falling speed
• Challenging piece sequence
• Target: 3 lines to clear
• Smaller game board

Security Features

• Randomized piece generation
• Timing-based behavioral analysis
• Pattern recognition for human vs. bot play styles
• Interaction density measurement

Accessibility

• Keyboard and touch controls
• Color-blind friendly piece designs
• Adjustable game speed
• Pause functionality