Duolingo Data:
Chess from English, 200 Units (2026/11/09):
Max Score (ELO): 1500
1816 lessons

Section 1 (6 Units) ELO 200
Section 2 (26 Units) ELO 500
Section 3 (24 Units) ELO 800
Section 4 (24 Units) ELO 1000
Section 5 (24 Units) ELO 1100
Section 6 (48 Units) ELO 1200
Section 7 (48 Units) ELO 1500

Section 1 (6 Units) ELO 200:
Learn the basic rules and how the pieces move.

ㅤ1ㅤ 1 Move your pieces
ㅤ1ㅤ 2 Capture and attack pieces
ㅤ1ㅤ 3 Defend your pieces
ㅤ1ㅤ 4 Check! Attack the king
ㅤ1ㅤ 5 Checkmate! Win the game
ㅤ1ㅤ 6 Play a full match

Section 2 (26 Units) ELO 500:
Develop basic tactics like pins and forks.

ㅤ2ㅤ 1 Piece value and captures
ㅤ2ㅤ 2 Safe squares and attacks
ㅤ2ㅤ 3 Opening principles
ㅤ2ㅤ 4 Defend your pieces
ㅤ2ㅤ 5 Queen and ladder mates
ㅤ2ㅤ 6 The Italian Game
ㅤ2ㅤ 7 Exchanges
ㅤ2ㅤ 8 Pawn rules and races
ㅤ2ㅤ 9 Forks
ㅤ2ㅤ 10 Mate patterns
ㅤ2ㅤ 11 Absolute pins
ㅤ2ㅤ 12 Plans after the opening
ㅤ2ㅤ 13 Continuing the opening
ㅤ2ㅤ 14 Relative pins
ㅤ2ㅤ 15 Skewers
ㅤ2ㅤ 16 Sacrifice
ㅤ2ㅤ 17 Discovered attacks
ㅤ2ㅤ 18 Backward moves
ㅤ2ㅤ 19 Happy pieces
ㅤ2ㅤ 20 Battery
ㅤ2ㅤ 21 Finishing the opening
ㅤ2ㅤ 22 Evaluate captures
ㅤ2ㅤ 23 Finding opportunities
ㅤ2ㅤ 24 Spotting tactics
ㅤ2ㅤ 25 Defending against mate
ㅤ2ㅤ 26 Double check

Section 3 (24 Units) ELO 800:
Carry out skewers and escape pins.

ㅤ3ㅤ 1 Pawn and knight forks
ㅤ3ㅤ 2 Responding to checks
ㅤ3ㅤ 3 Obstacles to castling
ㅤ3ㅤ 4 Using pins in a game
ㅤ3ㅤ 5 Effective pawn play
ㅤ3ㅤ 6 Essential checkmates
ㅤ3ㅤ 7 Stalemate traps
ㅤ3ㅤ 8 Attacking defenders
ㅤ3ㅤ 9 Move or capture to avoid mate
ㅤ3ㅤ 10 Defend or block mate
ㅤ3ㅤ 11 Pawn structure
ㅤ3ㅤ 12 Preventing forks
ㅤ3ㅤ 13 Escaping pins
ㅤ3ㅤ 14 Forcing moves
ㅤ3ㅤ 15 Discovered checks and attacks
ㅤ3ㅤ 16 Weaknesses
ㅤ3ㅤ 17 Open and semi-open files
ㅤ3ㅤ 18 Place knights and bishops
ㅤ3ㅤ 19 Using your queen
ㅤ3ㅤ 20 Pawn majorities and promotion
ㅤ3ㅤ 21 Opposition
ㅤ3ㅤ 22 Rooks vs queens
ㅤ3ㅤ 23 Trapped bishops and knights
ㅤ3ㅤ 24 Queen mates on a castled king

Section 4 (24 Units) ELO 1000:
Practice decoy tactics and intermediate moves.

ㅤ4ㅤ 1 Interference
ㅤ4ㅤ 2 Advanced pins
ㅤ4ㅤ 3 Order of captures
ㅤ4ㅤ 4 Board vision
ㅤ4ㅤ 5 Deflection
ㅤ4ㅤ 6 Mastering common endgames
ㅤ4ㅤ 7 Defending strategy
ㅤ4ㅤ 8 Attraction
ㅤ4ㅤ 9 Checkmate prevention
ㅤ4ㅤ 10 Advanced pawns
ㅤ4ㅤ 11 Planning checkmates
ㅤ4ㅤ 12 Zugzwang
ㅤ4ㅤ 13 File and rank attacks
ㅤ4ㅤ 14 Mating nets
ㅤ4ㅤ 15 Planning sacrifices
ㅤ4ㅤ 16 Weak pawns
ㅤ4ㅤ 17 Draws
ㅤ4ㅤ 18 Back-rank mates
ㅤ4ㅤ 19 Diagonal attacks
ㅤ4ㅤ 20 Advantages
ㅤ4ㅤ 21 Trapped pieces
ㅤ4ㅤ 22 Promoting pawns
ㅤ4ㅤ 23 Clearance
ㅤ4ㅤ 24 Spotting tactics

Section 5 (24 Units) ELO 1100:
Strengthen strategic thinking and pawn endgames.

ㅤ5ㅤ 1 Mate with a bishop pair
ㅤ5ㅤ 2 Push and stop passed pawns
ㅤ5ㅤ 3 Sacrifice to win
ㅤ5ㅤ 4 Decide when to trade
ㅤ5ㅤ 5 Use tactics in the opening
ㅤ5ㅤ 6 Knight mates
ㅤ5ㅤ 7 Improve your rooks and queen
ㅤ5ㅤ 8 Stack rooks and queens
ㅤ5ㅤ 9 Race your pawns to promotion
ㅤ5ㅤ 10 Take the opposition
ㅤ5ㅤ 11 Improve knights and bishops
ㅤ5ㅤ 12 Mate with rook and bishop
ㅤ5ㅤ 13 Discover checks
ㅤ5ㅤ 14 Attack with your bishops
ㅤ5ㅤ 15 Pawn power
ㅤ5ㅤ 16 Queen and bishop mates
ㅤ5ㅤ 17 Fork with your queen
ㅤ5ㅤ 18 Shouldering and zugzwang
ㅤ5ㅤ 19 Mate with a rook
ㅤ5ㅤ 20 Invade the pawn row
ㅤ5ㅤ 21 Attack and defend the king
ㅤ5ㅤ 22 Mate with rook and knight
ㅤ5ㅤ 23 Interference and intermezzo
ㅤ5ㅤ 24 Mate with minor pieces

Section 6 (48 Units) ELO 1200:
Use a bishop pair and mating nets.

ㅤ6ㅤ 1 Overloading
ㅤ6ㅤ 2 Castling strategy
ㅤ6ㅤ 3 Queen mates
ㅤ6ㅤ 4 Counterattack
ㅤ6ㅤ 5 Double attacks
ㅤ6ㅤ 6 Opening pawn attacks
ㅤ6ㅤ 7 King activity in endgames
ㅤ6ㅤ 8 Escape forks
ㅤ6ㅤ 9 Pawn structure
ㅤ6ㅤ 10 Pawn freezes and breakthroughs
ㅤ6ㅤ 11 Trading knights and bishops
ㅤ6ㅤ 12 Calculate captures
ㅤ6ㅤ 13 Knight checkmates
ㅤ6ㅤ 14 Falsely defended pieces
ㅤ6ㅤ 15 Create outposts
ㅤ6ㅤ 16 In-between moves
ㅤ6ㅤ 17 Promotion tactics
ㅤ6ㅤ 18 Advanced sacrifices
ㅤ6ㅤ 19 Expose the enemy king
ㅤ6ㅤ 20 Proactive king safety
ㅤ6ㅤ 21 Knight and pawn endgames
ㅤ6ㅤ 22 Spot enemy threats
ㅤ6ㅤ 23 Advanced checkmate vision
ㅤ6ㅤ 24 Tactical mate threats
ㅤ6ㅤ 25 Skewers
ㅤ6ㅤ 26 Retreating moves
ㅤ6ㅤ 27 Knight and bishop forks
ㅤ6ㅤ 28 Pins
ㅤ6ㅤ 29 Escaping pins
ㅤ6ㅤ 30 Queen and bishop mates
ㅤ6ㅤ 31 Overloading
ㅤ6ㅤ 32 Opera mate
ㅤ6ㅤ 33 Prevent castling
ㅤ6ㅤ 34 Intermezzo with check
ㅤ6ㅤ 35 Hook mate
ㅤ6ㅤ 36 Prevent a named mate
ㅤ6ㅤ 37 Queen and rook forks
ㅤ6ㅤ 38 Discovered check for material
ㅤ6ㅤ 39 Avoid discovered check
ㅤ6ㅤ 40 Pawn and king forks
ㅤ6ㅤ 41 Preventing forks
ㅤ6ㅤ 42 Discovered attack for material
ㅤ6ㅤ 43 Attraction into fork I
ㅤ6ㅤ 44 Deflection for material I
ㅤ6ㅤ 45 Piling up on a pin
ㅤ6ㅤ 46 Interference
ㅤ6ㅤ 47 Zugzwang
ㅤ6ㅤ 48 Lolli's mate

Section 7 (48 Units) ELO 1500:
Hone your positional play and visualize longer lines.

ㅤ7ㅤ 1 Trapped pieces I
ㅤ7ㅤ 2 Sacrifice for mate I
ㅤ7ㅤ 3 Discovered double check I
ㅤ7ㅤ 4 Deflection for promotion
ㅤ7ㅤ 5 Ruining pawn structure
ㅤ7ㅤ 6 Attraction into fork II
ㅤ7ㅤ 7 Prevent mate in 1
ㅤ7ㅤ 8 Check or mate?
ㅤ7ㅤ 9 Attraction for mate
ㅤ7ㅤ 10 Batteries
ㅤ7ㅤ 11 Morphy's mate
ㅤ7ㅤ 12 Double attacks
ㅤ7ㅤ 13 Discovered check for mate
ㅤ7ㅤ 14 Mate due to a pin
ㅤ7ㅤ 15 Prevent a mate from afar
ㅤ7ㅤ 16 Clearance
ㅤ7ㅤ 17 Rook and knight mates
ㅤ7ㅤ 18 Weak pawns
ㅤ7ㅤ 19 One-rook mates
ㅤ7ㅤ 20 Prevent mate in 2 I
ㅤ7ㅤ 21 Bishop and knight mates
ㅤ7ㅤ 22 Blind swine mate
ㅤ7ㅤ 23 Catching a passed pawn
ㅤ7ㅤ 24 Battery mates
ㅤ7ㅤ 25 Deflection for material II
ㅤ7ㅤ 26 Sacrifice for mate II
ㅤ7ㅤ 27 Prevent mate in 2 II
ㅤ7ㅤ 28 Deflection for mate
ㅤ7ㅤ 29 Bishop-assisted mates
ㅤ7ㅤ 30 Discovered double check II
ㅤ7ㅤ 31 Epaulette mate
ㅤ7ㅤ 32 Exposing the king
ㅤ7ㅤ 33 Greco's mate
ㅤ7ㅤ 34 Promoting
ㅤ7ㅤ 35 Parallel bishops mate
ㅤ7ㅤ 36 Attraction skewer
ㅤ7ㅤ 37 Boden's mate
ㅤ7ㅤ 38 Trapped pieces II
ㅤ7ㅤ 39 Suffocation mate
ㅤ7ㅤ 40 Close queen mates
ㅤ7ㅤ 41 Exchange sacrifices
ㅤ7ㅤ 42 Dovetail mate
ㅤ7ㅤ 43 Queen and knight mates
ㅤ7ㅤ 44 Forks in the endgame
ㅤ7ㅤ 45 Mate in three I
ㅤ7ㅤ 46 Fork for promotion
ㅤ7ㅤ 47 Mate in three II
ㅤ7ㅤ 48 Promotion forks

ㅤㅤ Trophy

Edited by Mat!/Ozone, 2026/11/09.