Real-Time Chess Analysis,Right on Your Board.
Stop missing the move. See it before you play.
ChessSolve puts Stockfish arrows directly on your board — live, as you play. Install once, start a game, and never wonder “what was the right move?” again.
This extension requires desktop Chrome — it won't work on mobile.
What it does
Analysis that lives inside your game
No tab switching. No copy-pasting. The extension reads your board and shows you the moves — right where you're already looking.
Arrows on your board
See the best moves right where you're looking. No switching tabs, no copy-pasting. Just arrows on your pieces, telling you what Stockfish sees.
See your options, not just the answer
Don't just see the move — see your choices. Multiple candidates shown at once so you can compare and decide like a real player.
Only on your turn
Arrows appear when it's your move. Gone when it's not. Clean, distraction-free — like having a coach who only speaks when it matters.
Every game saved automatically
When a game ends, it syncs to ChessSolve automatically. No manual export. Come back any time to replay it position by position.
How it helps
Your next move,
already figured out.
The moment it's your turn, Stockfish goes to work. In seconds, arrows appear on your board showing the strongest moves. The best one glows brightest. The others show your alternatives. You choose — but now you're choosing with the strongest chess engine in the world in your corner.
01
It's your turn
The extension detects the position and sends it to Stockfish the moment your opponent moves.
02
Arrows appear
Multiple best moves show up as arrows directly on your board. The stronger the move, the brighter the arrow.
03
You decide
Pick your move. The arrows clear when your opponent plays and reappear the moment it's your turn again.
Bonus: Puzzle Trainer
Train your eye. Spot the move yourself next time.
3,100+ ELO-rated puzzles that get harder as you improve. Seeing the arrows in your games is one thing — knowing why they're right is what actually makes you better.
Adaptive difficulty
Your rating adjusts after every puzzle using the ELO formula — harder as you improve, easier when you struggle.
Timed solving
Race the clock. Timer length scales with puzzle rating to keep every challenge fair.
Daily streaks
Solve at least one puzzle a day to keep your streak alive. Miss a day and it resets.
Global leaderboard
Compete on the puzzle rating leaderboard. Top 3 players get a podium.
Free: 20 puzzles/day · Premium: unlimited
Bonus: Analysis Board
Analyze any position, any time.
Paste a FEN or PGN into the free analysis board and explore any position with Stockfish. Step through moves, see the evaluation bar shift, and find exactly where it went wrong.
Evaluation bar
A live bar shows white's advantage as positions change. Spot swings at a glance — no numbers required.
Up to 5 best-move arrows
Green arrows ranked by engine preference. See all candidate moves at once, not just the top choice.
Full move navigation
Step forward and back through every move. Use arrow keys or click any move in the list to jump instantly.
Free exploration
Drag pieces to explore variations off the mainline. Navigate back and the recorded game resumes.
Free to use — no account required
How it works
Up and running before your next game
Two minutes to install. Then just play — the extension does the rest.
Install the extension
Download, unzip, load into Chrome. One-time setup, takes about 2 minutes.
Create a free account
Sign in directly from the extension popup. No credit card required.
Open a game
Start or join a game exactly as you normally would.
Click Start
Hit Start in the popup. Arrows appear on your board instantly. That's it.
Comparison
Your opponents study with engines. Now you can too.
Just not in rated games — that's cheating. But in training? It's the fastest way to get better.
ChessSolve
- Live arrows during play — candidates update as positions change
- Up to 5 best moves visualized at once
- One extension — works on both major chess platforms
- Server-powered Stockfish — no local engine setup
Built-in platform analysis
- Post-game review only — not available during play
- One suggested move at a time
- Separate tools per platform
- Requires navigating away from the game
For training only. Using engine assistance in rated games violates platform terms of service.
Our ethics guide →What players say
Real players. Real improvement.
Chess players using ChessSolve to train smarter and stop making the same mistakes.
I use it when practicing against bots. Helps me see tactics I'd miss on my own.
Alex T.
1600 rated
My coach and I use it during training games. We pause, discuss the arrows, then make our moves. Great for learning.
Maria S.
Club player
The post-game analysis board is perfect for reviewing my blunders without launching another app.
Kevin R.
Casual player
Trust & Privacy
Simple, transparent, reliable
Designed to respect your data and keep the service fast for everyone.
Minimal data
Only send the position data required to compute move suggestions. Nothing more.
Fair usage
Accounts prevent abuse and keep analysis fast and reliable for all users.
Consistent speed
Server-side Stockfish keeps performance consistent across all devices.
Pricing
Free to start. Upgrade anytime.
No credit card needed. Upgrade to unlock unlimited analysis and more candidate moves.
Free
Everything you need to get started.
- 30 positions per day
- 2 best moves per position
- 3 puzzle hints per day
- Chess.com & Lichess
- Real-time board arrows
Plus
Most popularCancel anytime. No contracts.
- Everything in Free
- 500 positions per day
- 3 best moves per position
- Unlimited puzzle hints
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Premium
For serious playersCancel anytime. No contracts.
- Everything in Plus
- Unlimited positions per day
- Up to 4 best moves per position
- Higher engine depth
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100% of supporter fees go to server costs and development.
FAQ
Common questions
Honest answers to what people ask most.