Tree path 8 levels King's Pawn Game › King's Gambit › King's Gambit Accepted › King's Knight's Gambit › King's Gambit Accepted: King's Knight's Gambit › King's Gambit Accepted: King's Knight's Gambit › King's Gambit Accepted: Kieseritzky Gambit › Neumann Defense
C39

King's Gambit Accepted: Kieseritzky Gambit, Neumann Defense

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Overview

King's Gambit Accepted: Kieseritzky Gambit, Neumann Defense is a sacrificial opening line filed under ECO C39 in the Open Games group. The defining idea is the early concession of material to seize the initiative and unbalance the position.

The Open Games group covers open games — classical 1.e4 e5 openings where both sides contest the centre directly with pawns.

It begins with 10 plies and takes 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nc6 to reach the canonical position.

In the opening tree, this line branches off from King's Gambit Accepted: Kieseritzky Gambit, part of the broader King's Pawn Game system.

Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.

ECO code
C39
Group
Open Games (C)
Plies
10
Parent
King's Gambit Accepted: Kieseritzky Gambit

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