You've successfully memorized this opening variation!
Opening Name
Variation Name
30 moves memorized
📝 Variation Notes
Variation Name
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Move explanation
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Welcome to ChessMem!
Learn openings from master-level games
Use a pre-made collection matched to your playing style
Your progress is synced across devices when signed in.
Excluded lines:0
Memorised lines:0
How to Use ChessMem
ChessMem helps you memorize chess openings through active recall, structured repetition, and master-verified opening trees.
Getting Started
Select an Opening: Click any opening in the sidebar to cycle through its main lines
Expand Variations: Click ▶ to reveal sub-variations and side lines
Favorites: Save openings and variations for quick access
Choose Your Color: The ♔ / ♚ icon shows the recommended side — click to switch
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 or variation
Play the correct moves on the board
Green = correct, Red = incorrect
Use Next to cycle through variations
Practice Depth: Limit how many moves you practice (5-15)
Explore Mode
Explore: After completing a variation, freely move pieces to explore the position
Navigation arrows: Step forward/backward through the moves you played
?! (AI Explain): Tap to get an AI explanation of the current move — works with navigation arrows to explain any move in the line
Navigation
Dropdown Buckets (mobile): On mobile, openings are shown in collapsible dropdown sections — tap a bucket to expand it and see its variations listed vertically
Scroll Wheel (desktop): On desktop, openings appear in a scrollable wheel picker — scroll or click to select, with the active opening highlighted in the center
Buckets: Large openings are grouped into systems (Advance, Exchange, etc.) so you can focus on one branch at a time
▶ / ▼: Expand/collapse sub-variations
Hide Lines: Temporarily remove variations from practice
Notes: Add personal notes to any move for future reference
Database Levels
Full: Complete database with all variations (default)
Medium: Core variations with less depth — good for intermediate players
Basic: Main lines only — ideal for beginners
What's Included
162 curated openings, 7,700+ positions
31 tactical traps from openings
Up to 15 moves deep, fully validated
All lines verified against Lichess Masters Database (160,000+ positions, avg rating ~2400)
Start with one opening and build your repertoire move by move.