Analyzes your games,
and picks your next training —
AI Coach
Play games on Echostone and it compares your 6 Go skill areas against players of your rank, then suggests the top 3 growth points to build first and today's training.
Your first analysis starts with one rating game — and the diagnosis gets sharper as games accumulate.
Playing alone, you don't know what to work on — and you keep making the same mistakes.
How is this different from ordinary AI game review?
Shows the mistakes in this one game.
Finds weaknesses that repeat across many games — and suggests your next training.
One rating game after sign-up is enough to start your first diagnosis.
When a game ends, your next lesson begins right away
From analysis to training, all connected with a single click.
Automatic game analysis
Analyzes your games across 6 areas, including life & death, tesuji, positional judgment, and endgame.
Growth point diagnosis
Finds the top 3 areas to improve first and the mistakes you keep repeating.
Today's personalized training
Instantly suggests problems, review scenes, and training games that match your analysis.
You may play alone, but you'll never grow alone.
Here's what Echostone finds
Not one game's mistakes — weaknesses that repeat across many games.
“Fighting mistakes are down, but in games you're winning, endgame losses keep repeating.”
- Judging big points when ahead
- Endgame move order
- Avoiding unnecessary fights
- 10 endgame problems
- 3 mistake scenes from your real games
- 2 AI training games starting from an advantage
Not just a review tool — a coach that plans your learning, too.
Start free, and decide on the AI coach after trying it fully
Core training — level-based problems, AI games, and more — stays free. The AI coach gives you full access for 30 days from the day you start the trial.
Level-matched AI game starter course (Road to Victory) · Live games with people · Grow Echo, your learning partner
6-area analysis · Mental coaching · Top 3 growth points · Daily training
No card required · No auto-billing
Start free and both benefits apply.
Start for freeCore training stays free even after the trial. Choose a paid membership only when you want more of the AI coach.
Every tool you need to improve at Go
Arranged in the order you'll use them.
Strength test
AI strength diagnosis that starts from a single rating game
7-area learning analysis
Automatically suggests your top 3 growth points and today's training
Point Review
Mistake scenes from your own games become problems
Library · Territory
20,000+ level-based problems and Territory Battle training
Fuseki Battle
40-move opening duels across 15 gates
Joseki Scrolls
3-step joseki memorization from both Black and White sides
Road to Victory · Divine Game
From beginner to 9 dan — practical training with an AI matched to your level
Lobby
Real-time games with opponents at your level
My Eco
Your own Go partner that grows as you learn
FAQ
From your very first game, you can see your next training.
Keep using core training for free, and experience the full AI coach for 30 days from the day you start.
Do you run a Go academy?
Manage lessons and parent consultations more systematically with per-student AI learning analysis.
Korea Baduk Federation Online Rank Assessment System
Echostone's strength test is operated as the online rank assessment system for the Korea Baduk Federation's Hope Dream Baduk Classroom & Youth Baduk Club.