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a b c d e f g h
8 a8 rd b8 c8 bd d8 qd e8 kd f8 bd g8 nd h8 rd 8
7 a7 pd b7 pd c7 pd d7 pd e7 f7 pd g7 pd h7 pd 7
6 a6   b6   c6 nd d6   e6   f6 g6   h6   6
5 a5   b5   c5   d5   e5 pd f5   g5   h5   5
4 a4   b4   c4   d4 e4 pl f4   g4   h4   4
3 a3   b3   c3   d3   e3   f3 nl g3   h3   3
2 a2 pl b2 pl c2 pl d2 pl e2 f2 pl g2 pl h2 pl 2
1 a1 rl b1 nl c1 bl d1 ql e1 kl f1 bl g1 h1 rl 1
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The Main Line

The King's Knight Opening, Main Line is the main continuation from the King's Knight Opening. It is characterised by the moves:

  1. e4 e5
  2. Nf3 Nc6

It compromises ECO codes C44-C99.

ECO Codes[]

White's most popular responses are, in order of popularity:

All other responses are categorised in C44. The noteworthy openings here are:

  • Ponziani Opening (3. c3)
  • Tayler Opening (3. Be2)
  • |Unnamed| (3. d3)
  • Konstantinopolsky Variation (3. g3)
  • Dresden Opening (3. c4)

For a list of all other ECO Codes, see List of chess openings.