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ailternative

Best Crazy Stone Alternatives ranked by AI · updated Aug 2026

Crazy Stone is a commercial Go program for playing against the computer and reviewing games. It is intended for players who want a packaged application with adjustable opponents rather than assembling an engine and GUI.

Developer: Remi Coulom and Unbalance Corporation Price: Paid; varies by platform 🎯 unbalance.co.jp/crazystone
🤖 AI board game game analysis go

Top 6 Crazy Stone alternatives

1

The Many Faces of Go

David Fotland and Smart Games

Many Faces of Go is a commercial computer program for playing and studying the board game Go. It targets players who want...

Pros

  • Offers adjustable playing strength and handicap settings for human players
  • Includes traditional Go analysis and game-record features
  • Runs as a dedicated desktop application without requiring an online account

Cons

  • Older playing strength is far below modern neural-network engines
  • Legacy interface is less polished than newer Go applications
  • Limited current-platform support and uncertain ongoing maintenance

N/A

Alternatives to The Many Faces of... → Visit site
2

Lizzie

Lizzie contributors

Lizzie is an open-source desktop Go analysis interface for engines such as KataGo and Leela Zero. It is aimed at players who...

Pros

  • Mature analysis interface with strong variation and win-rate visualization
  • Supports KataGo and other compatible Go engines
  • More flexible for engine experimentation than many hosted services

Cons

  • Less focused on guided training than KaTrain
  • Engine and model setup can be technically demanding
  • Interface feels older and less streamlined than newer web apps

Free

Alternatives to Lizzie → Visit site
3

AI Sensei

AI Sensei

AI Sensei is a web-based Go game review and training service that uses neural-network analysis to identify mistakes and suggest improvements. It...

Pros

  • No local engine installation or GPU configuration is required
  • Provides structured game reviews and training problems
  • More accessible for beginners than KaTrain's technical desktop setup

Cons

  • Free usage is more limited than KaTrain's unlimited local analysis
  • Requires uploading games to an online service
  • Advanced features depend on a subscription

Freemium, paid plans from $9.99/mo

Alternatives to AI Sensei → Visit site
4

KataGo

KataGo contributors

KataGo is a free, open-source neural-network engine for playing and analyzing Go. It is primarily a command-line and engine component rather than...

Pros

  • Provides the underlying analysis engine used by KaTrain
  • Excellent analysis strength with territory and score estimation features
  • Highly configurable for custom frontends and automated review pipelines

Cons

  • Lacks KaTrain's integrated training and user-interface features
  • Requires a compatible GUI or command-line workflow for practical study
  • Model, configuration, and hardware setup are technical

Free

Alternatives to KataGo → Visit site
5

Leela Zero

Leela Zero contributors

Leela Zero is an open-source neural-network Go engine inspired by AlphaGo Zero. It is designed for strong computer play and analysis, particularly...

Pros

  • Far stronger than Many Faces of Go at serious play
  • Open-source engine with widely supported neural-network workflows
  • Works with common Go interfaces and analysis tools

Cons

  • Requires separate GUI and network-weight setup
  • Less feature-rich for score estimation than KataGo
  • Older project with slower development than newer leading engines

Free

Alternatives to Leela Zero → Visit site
6

GNU Go

GNU Go contributors

GNU Go is a free, open-source Go engine that plays through standard interfaces and supports game analysis. It suits developers, educators, and...

Pros

  • Lightweight and easy to run on modest hardware
  • Free software with a mature, well-documented codebase
  • Integrates with multiple Go clients and server software

Cons

  • Much weaker than modern engines such as KataGo
  • Usually needs a separate GUI for comfortable play
  • Provides less detailed analysis and visualization than newer tools

Free

Alternatives to GNU Go → Visit site

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