Chess — Philidor Defense C41 : opening moves and positions

Chess · ECO C41

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.

4 / 4 · Side to move: White

1. e4 e5 2. Nf3 d6

FEN: rnbqkbnr/ppp2ppp/3p4/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 0 3

Source data · C41

44 PGN · 44 FEN · Opening line: 12

  • Philidor Defense: 1. e4 e5 2. Nf3 d6
  • Philidor Defense: 1. e4 e5 2. Nf3 d6 3. d4
  • Philidor Defense: 1. e4 e5 2. Nf3 d6 3. Bc4
  • Philidor Defense: 1. e4 e5 2. Nf3 d6 3. Bc4 Be7
  • Philidor Defense: Exchange Variation: 1. e4 e5 2. Nf3 d6 3. d4 exd4
  • Philidor Defense: Hanham Variation: 1. e4 e5 2. Nf3 d6 3. d4 Nd7
  • Philidor Defense: Lopez Countergambit: 1. e4 e5 2. Nf3 d6 3. Bc4 f5
  • Philidor Defense: Nimzowitsch Variation: 1. e4 e5 2. Nf3 d6 3. d4 Nf6
  • Philidor Defense: Philidor Countergambit: 1. e4 e5 2. Nf3 d6 3. d4 f5
  • Philidor Defense: Philidor Gambit: 1. e4 e5 2. Nf3 d6 3. d4 Bd7
  • Philidor Defense: Bird Gambit: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. c3
  • Philidor Defense: Exchange Variation: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4

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 Philidor 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