Chess Opening Theory/1. Na3

Durkin Opening
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Position in Forsyth-Edwards Notation (FEN)

rnbqkbnr/pppppppp/8/8/8/N7/PPPPPPPP/R1BQKBNR b

Moves: 1. Na3
ECO code: A00
Parent: Starting position

1. Na3?! - Durkin Opening

The Durkin Opening or Sodium Attack ("Sodium" due to the algebraic notation Na3, Na being the chemical symbol for sodium) is rarely played. The move does little to enhance the White position, although some sources consider it to be better than its reputation.

Black's responses

Black's best response is 1... d5, although 1... e5 is sometimes seen. White may continue with 2. b3, preparing to fianchetto with 3. Bb2, or with 2. c4. Alternatively, if Black plays 1... e5, White may choose 2. Nc4 to put pressure on the e5-pawn. 1...Na6!? could lead to a drawish game. black could also play 1... b5? but white should just take it with Nxb5 and black doesn't have any clear compensation.

All possible Black's moves

Quick
Navigation 		Na6
a6
a5
b6
b5 		Nc6
c6
c5
d6
d5
e6
e5 		Nf6
f6
f5
g6
g5 		Nh6
h6
h5

References

  • Eric Schiller (2002). Unorthodox Chess Openings (Second Edition ed.). Cardoza. ISBN 1-58042-072-9. {{cite book}}: |edition= has extra text (help)


v · t · e
Chess Opening Theory
1. e4 e5
Open game
2. Nf3
With 2...Nc6:
  • Four knights (
    )
  • Italian game (
    )
  • Spanish game (
    )

With other 2nd moves:

2. Other

1. e4 c5
Sicilian defence
2. Nf3 · Open Sicilian
With 2...Nc6:
With 2...d6:
With 2...e6:
With other 2nd moves:
Anti-Sicilians
1. e4 ...other:
Caro-Kann
French
Other


1. d4 d5
Closed game
2. c4
2. Nc3
2. other
1. d4 Nf6
Indian defence
2. c4
With 2...e6:

With 2...g6:

With other 2nd moves for Black:
2. Nf3
2. other:
1. d4 f5
Dutch defence
1. d4 ...other:
Flank
Unorthodox
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