SA Chinese Chess AI Online Analysis - Cross-platform Web Version
SA Chinese Chess Web Version, based on the open-source engine Pikafish, supports direct execution in mobile and desktop browsers. It provides online chess AI play, game analysis, cloud book query, and more. Completely free and supports offline use.
Features
Supports game review, live analysis, FEN loading, cloud book queries, human vs AI, and AI auto play for a professional analysis workflow.
Why Sachess
100% Free — No Ads
Every feature is free. No ads, no paywalls, no premium tiers. Unlike many chess sites that lock analysis behind subscriptions, Sachess gives you the full Pikafish engine at no cost.
AI Analysis in Browser
Pikafish runs directly in your browser via WebAssembly. No downloads, no app installs — just open the page and start analyzing. Works on desktop, tablet, and phone.
Unique Tools
Photo-to-FEN recognition, cloud book lookup, blunder checker, and a full position editor — tools no other xiangqi site offers in one place.
Works Offline
Once the engine loads, basic analysis works without internet. Review your games anywhere — on the train, in a park, or during a tournament.
How to Start in 3 Steps
Open the Board
Click Play Online to create a game room — no sign-up, no download, no email required.
Share with a Friend
Send the room link to your opponent through any messaging app. They join instantly with one click.
Review Your Game
After the game, use AI analysis to review every move and see where you can improve.
Frequently Asked Questions
Do I need to register or create an account?
No. Sachess is free and requires no email or password. See the Privacy Policy for limited multiplayer, abuse-prevention, and optional analytics processing.
Can I play with friends online?
Yes! Create a free room, share the link or room code with your friend, and play in real time. Up to 30 minutes per game with Fischer increment support.
How strong is the AI?
The AI runs the Pikafish engine (one of the strongest xiangqi engines in the world) at configurable levels. You can adjust it from beginner-friendly to grandmaster-level analysis.
Does it work on mobile phones?
Yes — Sachess is a PWA (Progressive Web App) that works on any modern browser. The board and controls are optimized for touch screens on phones and tablets.
Can I use it offline?
Once you open the page and the engine finishes loading, basic AI analysis works without an internet connection. Review games, analyze positions, and edit boards — all offline.