Latvian Gambit Accepted is a chess opening with the ECO code C40. It goes 1. e4 e5 2. Nf3 f5 3. exf5. White opens with 1. e4 (the king's pawn) and Black answers 1... e5. After 5 moves it is Black to move. After the last move White is a pawn ahead in material. 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... e5 – Black plays the pawn to e5
2. Nf3 – White plays the knight to f3
2... f5 – Black plays the pawn to f5
3. exf5 – White captures on f5 with the e-pawn
About the Latvian Gambit Accepted
After 1.e4 e5 2.Nf3 f5, White takes with 3.exf5. Black must push ...e4 and play actively, but White is usually better.
Black pushes ...e4 to chase the f3 knight.
White can play Ng5 or Nd4 and keep the extra pawn.
Watch the e8-h5 diagonal; Qh5+ often wins for White.