All ECO Codes
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C47
Four Knights Game
Scotch Variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4
C47
Four Knights Game
Scotch, Krause Variation
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 Bb4 5.Nxe5
C47
Four Knights Game
Scotch, 4...exd4
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4
C47
Four Knights Game
Belgrade Gambit
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nd5