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D60Opening

Queen's Gambit Declined:Orthodox Defense

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7

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White to move

Legal moves
40
Games in the next 4 moves
1,235,266
Different positions among them
401,540
Named lines from here
38

See it on the mapOn the opening map

It is reached after 12 moves: 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7. It is a line of the Queen's Gambit Declined.

White is to move and has 40 legal moves. Over the next four moves — two for each side — the game can branch into 1,235,266 different games. Those games reach 401,540 different positions: most positions can be reached in more than one way, 3.1 on average.

The Lichess opening list names 38 further lines after this position, such as Main Line (7. Rc1) and Rubinstein Variation (7. Qc2).

The same moves can be played in 2,700 different legal orders that all reach this position. For example 1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7, which starts as the Horwitz Defense.

Map of every game of the next four moves after the Queen's Gambit Declined: Orthodox Defense
Every game of the next four moves from this position, as the map draws it. Each ring is one more move; the outer ring holds all 1,235,266 games.

Move by move

  1. 1. d4Queen's Pawn Game
  2. 1... Nf6Indian Defense
  3. 2. c4Indian Defense: Normal Variation
  4. 2... e6—
  5. 3. Nf3Indian Defense: Anti-Nimzo-Indian
  6. 3... d5—
  7. 4. Nc3Queen's Gambit Declined: Three Knights Variation
  8. 4... Be7—
  9. 5. Bg5Queen's Gambit Declined
  10. 5... O-O—
  11. 6. e3Queen's Gambit Declined: Modern Variation, Normal Line
  12. 6... Nbd7Queen's Gambit Declined: Orthodox Defense

Named lines from here

Related openings

FEN

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