1.e3 d5 2.Nc3 e5 3.f4 exf4 4.Nf3
The Ekolu Variation involves a pawn sacrifice with an interesting king pawn setup on the e3 square. Though there are a few downsides as there are not many games played at the highest level of chess.
But if you are an intermediate player then you surely can play this opening while playing an online chess game. It helps you trigger your sense of sacrifice and also improve your sense of playing a pawn down game with a positional touch to your game.
The more you play such games, the more your confidence of playing chess improves.
Nc6 5.a3 Nf6 6.Bd3 Bd6 7.0-0 Bg4 8.Qe1 Qe7 9.b4 fxe3 10.Nb5 0-0-0 11.Nxd6+ Rxd6 12.Bb2 Re6 13.Qg3 h5 14.h3 Bxf3 15.Rxf3 exd2 16.Bf5 Re8
The white player has recovered from a down position to uplift his position. This has been possible as black has not been much careful about his position in the game. This game has been a perfect game of defining the ups and downs in a single game.
17.Rd1 Ne4 18.Qxg7 h4 19.Bxe4
A final mistake which allows black to unpin the piece and seal the game with ease.
Rxe4 20.Rxd2 Re1+ 21.Kh2 Nb8
And white resigns as a result of an open position with practical chance for black though eventually black might just be able to win it with ease.