Chess — Nimzowitsch Defense B00 : opening moves and positions

Chess · ECO B00

An ECO code groups opening lines, not one forced position. Step through legal notation from the CC0 Lichess dataset. This is a study viewer, without engine evaluation or a claim that a line is best.

2 / 2 · Side to move: White

1. e4 Nc6

FEN: r1bqkbnr/pppppppp/2n5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - 1 2

Source data · B00

83 PGN · 83 FEN · Opening line: 12

  • Nimzowitsch Defense: 1. e4 Nc6
  • Nimzowitsch Defense: 1. e4 Nc6 2. d4
  • Nimzowitsch Defense: Declined Variation: 1. e4 Nc6 2. Nf3
  • Nimzowitsch Defense: Pseudo-Spanish Variation: 1. e4 Nc6 2. Bb5
  • Nimzowitsch Defense: Wheeler Gambit: 1. e4 Nc6 2. b4
  • Nimzowitsch Defense: Colorado Countergambit: 1. e4 Nc6 2. Nf3 f5
  • Nimzowitsch Defense: Franco-Nimzowitsch Variation: 1. e4 Nc6 2. Nf3 e6
  • Nimzowitsch Defense: French Connection: 1. e4 Nc6 2. Nc3 e6
  • Nimzowitsch Defense: Kennedy Variation: 1. e4 Nc6 2. d4 e5
  • Nimzowitsch Defense: Mikenas Variation: 1. e4 Nc6 2. d4 d6
  • Nimzowitsch Defense: Neo-Mongoloid Defense: 1. e4 Nc6 2. d4 f6
  • Nimzowitsch Defense: Pirc Connection: 1. e4 Nc6 2. Nc3 g6

Game and item names below retain the source’s English identifiers so you can find them in the linked documentation.

Related game questions

Chess opening explorer

Using this reference

For Nimzowitsch Defense, start at the first position and step through the moves rather than memorizing the final board. After each move, look for the piece that moved and the squares it now influences. The same opening name can cover several branches, so use the selected line’s move order as your reference.

The final position in the viewer is where this recorded line ends, not a verdict on the position. Choose another listed branch to see where the paths separate. The viewer displays legal source moves; it does not provide an engine evaluation or establish a forced continuation.

Sources and scope

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Public source snapshot; changes after this version may differ. 2026-11-03

chess-a · CC0

chess-b · CC0

chess-c · CC0

chess-d · CC0

chess-e · CC0