Meeting the Four Knights — defence for Black

Meeting the Four Knights with symmetrical development and timely central breaks. It covers the Spanish 4.Bb5 Bb4 and the Rubinstein 4...Nd4, the Scotch Four Knights, the Glek 4.g3, the 4.Bc4 fork trick, the Halloween Gambit and the quiet 4.Be2. 8 lines for Black: Spanish 4.Bb5 Bb4 with ...Qe7, Rubinstein 4...Nd4, Scotch Four Knights, Glek 4.g3 d5, 4.Bc4 fork trick, Halloween 4.Nxe5, Spanish with 6.Nd5, 4.Be2 d5.

Popularity rank #22 of 64 · Endgame Pro defence · against 1.e4 e5 2.Nf3 Nc6 3.Nc3

Open-game structures. They are symmetrical in the Spanish line, open after ...d5, or broken after a d4 exchange with Black's pawns on c6 and d5.

Watch out: After ...Bb4 and castling on both sides, watch for Nd5 tactics against your bishop and knight. Count the pieces before you capture.

Endgame
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New · Pocket BoardsTiny boards. Real mates.4×4 to 6×6 puzzles and The Climb: endless steps, a chest every 25. Endgame Kids · ages 6–12Chess for kids30 short lessons, big boards, friendly hints. No chat.

See the line. Feel the snap.

Play. Get graded.
Drill the move you missed until you don't miss it.

Endgame is a chess training game. Climb a puzzle path world by world, replay the 60 games every strong player knows, spar with bots on the clock, and let the engine turn your blunders into tomorrow's drills.

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♚New shelfChampion's Top 10Ten landmark games, from age 13 to world-title clinchers. First three free — replay or guess his moves.→

Sparring partners

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Openings & defences

All of Learn →

64 Stockfish-checked traps in three style packs. Spring each one, then learn to dodge it.

The Path

Five worlds from 0 to 2000+. Short levels of hand-picked puzzles, 1–3 stars, XP, a daily streak and a boss at the end of every world.

60 Classics

The Immortal, the Opera Game, Deep Blue, Kasparov's Immortal and ten landmarks from the modern world champion. Replay with an eval bar or play the winner's moves and get scored.

Rated tactics

Thousands of real positions from the open Lichess database, served at your level, filtered by motif. Plus a daily puzzle.

Bots on the clock

Eight sparring partners with their own personalities, from "hangs everything" to full-strength engine. Bullet to rapid, or pass-and-play with a friend.

Game review

Every move gets a label — from Brilliant and Only move down to Blunder — plus accuracy for both sides, an estimated game rating and the key moments. Your own mistakes land in a drill queue. Import from Lichess or Chess.com.

Learn

Coach-inspired training paths by rating band, an opening repertoire trainer, a trap lab and board-vision speed drills.

A chess trainer that remembers what you missed

Most games between club players are decided by a short tactic — a fork you didn't see, a pin you walked into, a back rank you forgot to air out. Endgame closes the loop: learn the pattern on the Path, use it against a bot, get graded, and drill the miss until it sticks.

Want to read up first? Short guides: forks, pins, back-rank mates.