Chess opening · ECO C22
Center Game: Paulsen Attack Variation
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1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3
Center Game: Paulsen Attack Variation is catalogued under ECO code C22. It is reached after 4 moves (7 half-moves): 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3. After the last move it is Black to play. White opens 1. e4. It is a named variation of the Center Game, which has 18 catalogued lines in total.