Tetris AI

Score: 0

Lines: 0

Genetic Algorithm Status

Generation: 0

Population Size: N/A

Max Generations: (0 = infinite)

Best Score Ever: 0

Best Weights Found:

N/A

Current AI Heuristics:

N/A

About This Demo

I played around with the new Gemini 2.5 Pro Experimental (03-25 model date), and it's an amazing model for writing code – so far, it has solved tasks of almost any complexity I've given it; no, it won't build a time machine or create Vice City from a single prompt – but things like shaders, small 3D projects, HTML/React applications, etc. – easy peasy.

In the demo, Google's new model made a genetic Tetris simulator that teaches itself to play by optimizing its strategy – it turned out quite complex: a single HTML file contains the Tetris game itself, an AI player deciding where to place pieces based on a set of rules, and a genetic algorithm, all written from a single prompt.

How the Algorithm Works:

The genetic algorithm's task is to find the ideal "weights" for these rules so the AI plays as efficiently as possible. How does it learn?

  1. Generations: A "population" of AIs is created with different random settings (heuristic weights).
  2. Evaluation: Each AI (or, for speed, the best representative of the generation) plays a game. Its "success" (fitness) is simply the points scored. The more points, the better the strategy.
  3. Selection: The best AI "parents" are selected for "reproduction."
  4. Crossover and Mutation: Their "genes" (heuristic weights) are mixed and slightly randomly changed, creating a new generation of AI that inherits traits from successful parents but with small variations.
  5. Repeat: The cycle repeats many times, and (in theory) with each generation, the AI should play better and better, finding more optimal weights for its strategy.

And the coolest part – you can watch in real-time on the screen how the best AI of the current generation tries to break records, and see in the info panel how its weight coefficients change – the very "strategy" it has learned.

And the best thing is that it's all free: https://aistudio.google.com/app/prompts/new_chat