Irish Gambit is a chess opening with the ECO code C44. It goes 1. e4 e5 2. Nf3 Nc6 3. Nxe5. 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.