Train
Solve original positions with guidance when you need it.
01 The personal chess gym
Play
Notice
Remember
ChessGrind turns the positions you miss into a private training system that brings them back until the pattern sticks.
No external chess accountPrivate by defaultFree to start
CHESSGRINDBuild instinct.
Move by move.
Move by move.
ABOUTOne loop.
One loop.
Every part connected.
Play
Turn complete games into positions worth keeping.
Remember
Grindbook resurfaces the moments that matter.
Improve
Insights show which patterns are actually changing.
TRAIN + PLAYBuild the pattern first.
01Adaptive training
Your weak spots choose what comes next.
Train on 1,000 original positions with difficulty modes, progressive hints, legal-move guides, and sessions that adapt to your mistakes.
Start a session02Play vs computer
A full game that leaves something useful behind.
Play a position-aware opponent, review the move ledger, inspect key moments, and save any position worth seeing again.
Play a game
03 · GRINDBOOK
Your mistakes should train you twice.
Save a puzzle or game position once. Grindbook schedules it for review and tracks your recall. Founder keeps that memory synced across every device.
Open GrindbookDUE TODAY7
Back-rank pattern
Last reviewed 3 days ago
REPERTOIRE + INSIGHTSMake the work visible.
Build your lines.
Drill your response.
Map opening branches and practise them until the reply is automatic.
Open the lab ↗Know what is actually getting better.
View insights ↗FOUNDING SEASON51% OFF
Keep the board free.
Fund the memory.
All 1,000 puzzles stay free. Founder unlocks private cloud sync, the full Grindbook memory layer, and every new puzzle pack we ship this year.
FREE VS FOUNDERFree chess.
Free chess.
Paid memory.
No puzzle paywall. Founder is for players who want their Grindbook, repertoire, and progress remembered across every device.
See everything Founder includes| What you get | Free$0 | Founder$4.9951% off · one year |
|---|---|---|
| Original puzzle library | 1,000 positions | 1,000 positions |
| Sessions, games + hints | Unlimited | Unlimited |
| Grindbook + repertoire | This device | Every device |
| Progress backup | Local only | Private cloud sync |
| Founder status | — | Included |
| Product feedback | Community | Direct founder line |
1,000 original positions · no puzzle limit