Board Theme
Sidebar
Style:
Click behavior:
Immediate: Click starts practice, shows sub-variations if any.
Navigate: Click sub-variations first, practice starts on final selection.
Sign In
Sign in to sync your progress across devices.
Data
Your progress is synced across devices when signed in.
Reset memorised opening:
Memorised lines:
0
Game Analysis
Get a personalised analysis of your Chess.com games — opening repertoire, rating trends, strengths, and an improvement plan.
Analysing your games...
This may take a couple of minutes.
Badges ▼
Earned permanently by memorising all lines in an opening.
How to Use ChessMem
ChessMem helps you memorize chess openings through active recall, structured repetition, and master-verified opening trees.
Getting Started
- Open the sidebar: Tap the purple menu button (top left) to browse openings
- Select an Opening: Scroll the picker wheels and tap to select
- Collections: Tap a collection (Solid, Aggressive, etc.) to see its openings
- Choose Your Color: Tap Play White or Play Black above the board
Collections
Collections group openings into learning paths. Master one opening for White, and responses to both 1.e4 and 1.d4 as Black.
- Style: Solid, Aggressive, Classical, Creative
- Foundational 1, 2, 3: Progressive learning path
Practice Mode
- Select an opening from the sidebar
- Drag pieces to play the correct moves
- Correct moves are confirmed, wrong moves show the right answer
- Complete all moves to memorize the line
- Use Hint if you get stuck
Explore Mode
- Explore: Tap to freely move pieces and experiment with positions
- Navigation arrows: Step forward/backward through moves
- AI Explain: Get an AI explanation of any move in the line
Progress Tracking
- Progress fill: Each opening in the picker wheel fills with green based on how many variations you've memorised
- 100% fill means every variation in that opening is complete
- Progress shows on all pickers: Openings, Favorites, Collections, and Traps
Tips and Shortcuts
- Skip variation: Double-tap the ⏭ (last) button to jump to the next variation
- Resume after reviewing: Tap any piece while viewing move history to return to the current position and continue playing
- Long-press the opening name to add/remove from favorites
- Swipe left on a favorite to remove it
- Flip Board: Switch perspective at any time
- Reset: Start the current variation from the beginning
- Settings: Clear excluded lines, change board theme, toggle sounds
What's Included
- 162 curated openings, 7,700+ positions
- 31 tactical traps
- Up to 15 moves deep, all lines verified against Lichess Masters Database
Start with one opening and build your repertoire move by move.