Chess Openings Lab
a8b7c6d5e4f3g2h1

Indian Defense: Knights Variation

The Knights Variation is 1.d4 Nf6 2.Nf3, where White develops the king's knight before choosing c4, a London with Bf4, or a Colle setup. Black can choose almost any defense, and the engine prefers ...d5, ...e6 or ...c6 with a central fight to follow.

Moves
1.d4 Nf6 2.Nf3
ECO
A46
Engine
+0.26 · level (Stockfish 17.1, depth 20)
Played
2,983 games in our lichess sample
White scores
53.2%

Key ideas for both sides

White

  • Keep c4 ready: against ...d5 the top engine line plays c4 and e3, winning the pawn back with Bxc4 after ...dxc4.
  • Against ...g6 or ...d6, Bf4 and e3 build a London setup that avoids heavy King's Indian theory.
  • With ...e6, g3 and Bg2 lead toward Catalan play with pressure on d5 and b7.

Black

  • 2...d5 and ...dxc4 hit the center fast; after e3, strike with ...c5 to free your pieces.
  • 2...e6 keeps Queen's Gambit and Queen's Indian options open and waits for White to show the c-pawn plan.
  • Avoid rare tries like ...b5 or ...Ne4 that give White an easy lead with c4 and Nc3.

Plans and pawn structure

Nothing is fixed yet, so each side's next pawn move shapes the game. With c4, White enters Queen's Gambit and Catalan structures where d5 and the long diagonal matter most. With Bf4 and e3, White builds a London and plans c3, Nbd2 and a kingside push with h3 and g4 in some lines. Black's plans are classic: ...d5 and ...c5 against d4, or a fianchetto with ...g6 and a later ...e5 or ...c5 break.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.26: level. Its three top choices for Black:

  1. +0.26 2...d5 3.c4 dxc4 4.e3 c5 5.Bxc4
  2. +0.30 2...e6 3.c4 d5 4.g3 c5 5.cxd5
  3. +0.33 2...c6 3.c4 d5 4.Nc3 e6 5.e3

Pawns, from White's side.

How it scores on lichess

2,983 rated lichess games reached this position; White scored 53.2%.

under 120054.6%
1200–159954.2%
1600–199951.4%
2000 and up53.7%

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

Where it goes next

  • Wade-Tartakower Defense2...d6 · 4,067 games
  • London System2...e6 · 4,006 games
  • London System2...g6 · 3,943 games
  • Spielmann-Indian2...c5 · 1,785 games
  • Czech-Indian2...c6 · 505 games
  • Poisoned Pawn Variation2...d5 · 55 games
  • Döry Defense2...Ne4 · rare
  • Knights Variation, Alburt-Miles Variation2...a6 · rare
  • Polish Variation2...b5 · rare
  • Pseudo Queen's Indian Defense2...b6 · rare
  • Exchange Variation, Modern Exchange Variation, Kramnik's Line2...g6 · rare
  • Queen's Indian Defense, with e32...e6 · rare

How to play against it

As Black, pick a setup that matches your repertoire against c4. 2...d5 is the engine's top choice and leads to Queen's Gambit play. If you play King's Indian setups, be ready for London lines with Bf4. Don't drift with rare moves that let White build c4 and e4 for free.

Questions

What are the moves of the Indian Defense: Knights Variation?

The Indian Defense: Knights Variation starts 1.d4 Nf6 2.Nf3. Its ECO code is A46.

Is the Indian Defense: Knights Variation good for White?

Stockfish 17.1 rates the position +0.26 at depth 20, which is level. In 2,983 lichess games from our sample, White scored 53.2%. A flexible move order that suits White players with a mixed repertoire; Black needs answers to both c4 and the London.

What is the main idea of the Indian Defense: Knights Variation?

White develops before choosing a pawn structure. Black can enter Queen's Gambit play with ...d5, keep it flexible with ...e6, or aim for Slav structures with ...c6.

What should Black play next?

The engine's first choice is d5, with e6 and c6 close behind. 2...d5 claims the center, and if White plays c4 the capture ...dxc4 with ...c5 gives Black quick play.

Updated October 2026. Sources and method.