Chess Openings Lab
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Indian Defense: Omega Gambit

The Omega Gambit is 1.d4 Nf6 2.e4, offering the e4 pawn to the f6 knight on move two. White hopes for quick development and attacking chances, but Black can simply take with ...Nxe4 and keep a sound extra pawn.

Moves
1.d4 Nf6 2.e4
ECO
A45
Engine
−0.72 · a slight edge for Black (Stockfish 17.1, depth 20)
Played
788 games in our lichess sample
White scores
44.3%

Key ideas for both sides

White

  • After 2...Nxe4, play Nf3, Bd3 and O-O for quick development, then c4 to grab space against a knight on f6.
  • If Black declines with ...d5, push e5 to kick the knight to d7, a French-like space edge for White.
  • Against ...d6 and ...e5, Nc3 and Nf3 lead to a normal Pirc or Philidor setup with a fine center.

Black

  • Take the pawn: 2...Nxe4 is the engine's top choice, then ...g6, ...Nf6 and ...Bg7 bring the knight home safely.
  • After the capture, castle quickly and meet c4 with ...d6 or ...c5 to keep the center under control.
  • Avoid 2...d5 here: after e5 and Bd3, White gets a French-type bind with extra space.

Plans and pawn structure

After 2...Nxe4, Black is a clean pawn up and only needs to bring the knight back and castle. White's compensation is development: Nf3, Bd3 and O-O, then c4 and Nc3 to chase the knight and grab space. Black should not chase more material; the fianchetto with ...g6 and ...Bg7 plus short castling consolidates. If Black declines the pawn, White gets a normal open game with an extra center pawn.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position −0.72: a slight edge for Black. Its three top choices for Black:

  1. −0.72 2...Nxe4 3.Nf3 g6 4.Bd3 Nf6 5.O-O
  2. +0.53 2...d6 3.Nc3 e5 4.Nf3 Nbd7 5.h3
  3. +0.90 2...d5 3.e5 Nfd7 4.Bd3 c5 5.c3

Pawns, from White's side.

How it scores on lichess

788 rated lichess games reached this position; White scored 44.3%.

under 120044.6%
1200–159942.0%
1600–199945.2%
2000 and up47.0%

Light: White wins. Grey: draws. Dark: Black wins. About the sample.

Where it goes next

  • Omega Gambit, Arafat Gambit2...Nxe4 · rare

How to play against it

As Black, accept with 2...Nxe4. Then play ...g6, retreat ...Nf6 when Bd3 arrives, and castle behind the g7 bishop. Do not leave the knight on e4 where Bd3 and Nf3 can harass it, and avoid ...d5 as a reply to 2.e4.

Questions

What are the moves of the Indian Defense: Omega Gambit?

The Indian Defense: Omega Gambit starts 1.d4 Nf6 2.e4. Its ECO code is A45.

Is the Indian Defense: Omega Gambit good for White?

Stockfish 17.1 rates the position −0.72 at depth 20, which is a slight edge for Black. In 788 lichess games from our sample, White scored 44.3%. A dubious gambit: White gets some development for the pawn, but a calm defender keeps the extra material and a good game.

What is the main idea of the Indian Defense: Omega Gambit?

White gives up the e4 pawn on move two to develop quickly with Nf3, Bd3 and O-O. Black takes the pawn and consolidates with a kingside fianchetto, keeping a sound extra pawn.

What should Black play next?

The engine's first choice is Nxe4, with d6 and d5 close behind. 2...Nxe4 wins a clean pawn, and Black can bring the knight back to f6 after ...g6 and Bd3.

Updated October 2026. Sources and method.