Nimzowitsch Defense: Kennedy Variation, Keres Attack is a chess opening with the ECO code B00, part of the Nimzowitsch Defense family. It goes 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nc3. White opens with 1. e4 (the king's pawn) and Black answers 1... Nc6. After 7 moves it is Black to move. The lesson on the board explains every move of the line and lets you play it yourself; it is free.
The moves
1. e4 – White plays the pawn to e4
1... Nc6 – Black plays the knight to c6
2. d4 – White plays the pawn to d4
2... e5 – Black plays the pawn to e5
3. dxe5 – White captures on e5 with the d-pawn
3... Nxe5 – Black takes on e5 with the knight
4. Nc3 – White plays the knight to c3
About the Nimzowitsch Defense
Black answers 1.e4 with 1...Nc6, an offbeat move that blocks the c-pawn. Black hopes to reach a French- or e5-type game on their own terms.
After 2.d4, Black often plays ...d5 or ...e5 to hit the centre.
The c6 knight blocks ...c5, so Black uses piece pressure on d4 instead.
White can simply grab space with d4 and d5; Black must play actively.
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