Chess opening · ECO C44
Ponziani Opening: Jaenisch Counterattack
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1. e4 e5 2. Nf3 Nc6 3. c3 Nf6
Ponziani Opening: Jaenisch Counterattack is catalogued under ECO code C44. It is reached after 3 moves (6 half-moves): 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6. After the last move it is White to play. White opens 1. e4. It is a named variation of the Ponziani Opening, which has 16 catalogued lines in total.