Trompowsky Attack — what it means in chess
1.d4 Nf6 2.Bg5, sidestepping mainstream theory.
1.d4 Nf6 2.Bg5, sidestepping mainstream theory.
[[board startfen="rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1" caption="The Trompowsky: the bishop leaps out on move two, asking Black's knight a question before theory has a chance to begin. An entire mainline universe, declined in one move." pgn="d4 Nf6 Bg5" notes="Move two, and White has already left the book most opponents studied. The queen's pawn. The flexible knight, expecting c4 and the familiar mainline forest — — and instead the bishop pounces on it. The standing offer: capture on f6 at a moment of choice, doubling Black's pawns and unbalancing the game before it has a shape. Black's principled answers push the question back — the knight can jump to e4, or Black can accept the doubling and claim the bishops. Either way, both players are thinking for themselves by move three, which is the entire point."]]
The Trompowsky Attack is theory-avoidance with teeth: Bg5 on move two sidesteps the entire Indian-defense universe and puts a concrete question on the board immediately — the bishop stands ready to take on f6, doubling Black's pawns and trading the bishop pair for structural damage before the opening has settled into any known shape. It is not a stunt; the Trompowsky has served as a main weapon for world-class players precisely because the imbalances it manufactures are genuine, and because opponents raised on mainline preparation must produce original chess from move three.
The Endgame Society glossary defines more than 240 chess terms — rules, notation, tactics, strategy, pawn structures, endgames, and openings — in language a beginner can act on rather than dictionary shorthand.