Duolingo Data:
Chess from English 200 Units, 1845 Different Lessons:

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TeachingObjective
Move your pieces
Capture and attack pieces
Defend your pieces
Check! Attack the king
Checkmate! Win the game
Play a full match
Piece value and captures
Safe squares and attacks
Opening principles
Defend your pieces
Queen and ladder mates
The Italian Game
Exchanges
Pawn rules and races
Forks
Mate patterns
Absolute pins
Plans after the opening
Continuing the opening
Relative pins
Skewers
Sacrifice
Discovered attacks
Backward moves
Happy pieces
Battery
Finishing the opening
Evaluate captures
Finding opportunities
Spotting tactics
Defending against mate
Double check
Using pins in a game
Knight and pawn forks
Responding to checks
Obstacles to castling
Effective pawn play
Essential checkmates
Stalemate traps
Attacking defenders
Prevent mate—move or capture
Prevent mate—defend or block
Pawn structure
Preventing forks
Escaping pins
Forcing moves
Discovered checks and attacks
Weaknesses
Open and semi-open files
Placing knights and bishops
Using your queen
Pawn majorities and promotion
Opposition
Rooks vs queens
Trapped bishops and knights
Queen mates on a castled king
Interference
Advanced pins
Order of captures
Board vision
Deflection
Mastering common endgames
Defending strategy
Attraction
Checkmate prevention
Advanced pawns
Planning checkmates
Zugzwang
File and rank attacks
Mating nets
Planning sacrifices
Weak pawns
Draws
Back-rank mates
Diagonal attacks
Advantages
Trapped pieces
Promoting pawns
Clearance
Spotting tactics
Opposition
Discovered checks
Knight mates
Doubling rooks and Alekhine's gun
Sacrifices
Passed pawns
Improving your pieces
Early game tactics
Improving your rooks and queen
Rook and bishop mates
Pawn races and breakthroughs
Knowing when to trade
More rook mates
Bishop attacks
Pawn power
Queen and bishop mates
Queen forks
Shouldering and zugzwang
Bishop pair mates
Rooks on the pawn row
Attacks on a castled king
Rook and knight mates
Interference and intermezzo
Minor piece checkmates
Practicing checkmating patterns
Opening repertoire
Defending tactics
Discovered attacks
Mastering the knight
Attacking tactics
Gaining advantage in the early game
Mastering the pawn
Planning sacrifices
Practicing frequent checkmates
Middlegame practice
Exploiting mistakes
Mastering the king
Multipiece tactics
Obtaining the advantage
Surprising your opponent
Improving your position
Mastering the queen
Endgame practice
Avoiding attacks
Mastering the rook
Mastering checkmates
Mastering the seventh rank
Mastering the bishop
Disadvantages
Tricky endgames
Attraction and clearance
Midgame tactics I
Balanced focus I
Longer checkmates I
Clearance and deflection
Attraction and midgame
Midgame tactics II
Balanced focus II
Endgames I
Endgames II
Midgame tactics III
Rook and queen endgames
Bishop and knight endgames
Checkmate practice
Discovered and double attacks
Longer checkmates II
Balanced focus III
Pawn endgames and promotions
Deflection and attraction
Winning pieces
Balanced focus IV
Early game
Midgame tactics I
Rook and queen endgames
Bishop and knight endgames
Checkmate practice
Discovered and double attacks I
Longer checkmates
Balanced focus
Pawn endgames and promotions
Deflection and attraction
Winning pieces
Balanced focus
Early game
Disadvantages
Tricky endgames
Attraction and clearance
Midgame tactics II
Balanced focus
Longer checkmates
Clearance and deflection
Attraction and midgame
Midgame tactics III
Balanced focus
Endgames I
Endgames II
Strategic balance I
Checkmate mastery I
Tactical precision
Positional play
Advanced tactics I
Strategic balance II
Complex endgames I
Complex endgames II
Advanced tactics II
Complex endgames III
Piece endgames
Checkmate mastery II
Advanced discovered attacks
Long checkmates
Strategic balance III
Pawn structure
Tactical combinations I
Material advantage
Strategic balance IV
Opening principles
Comeback tactics
Endgame finesse
Tactical combinations II
Advanced tactics III

Edited by Mat!/Ozone, 2026/09/12.