King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5

D801.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5
Feb 20, 2026
Play this opening as...
TL;DR

White plays an early Bg5, creating pin-based pressure while Black's ...d5 leads to Grünfeld-type positions. The resulting play revolves around piece activity and the fight for central control.

Written by

Chessiverse
Chessiverse TeamOpening Guides

Expert chess content backed by opening theory and our database of 600+ AI bots with unique playing styles and opening repertoires.

King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5: A Complete Guide
King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5 - Opening Moves
Summary

The King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5 arises after 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5 and falls under ECO code D80. With 45,482 games in the master database, it is a well-established opening choice.

History and Notable Players

It arises from the Grünfeld Defense. Among the most prolific practitioners on the White side are Ivan Farago (154 games), Aleksey Dreev (116 games), Ivan Sokolov (94 games). On the Black side, notable exponents include Peter Svidler (232 games), Lubomir Ftacnik (218 games), Vlastimil Jansa (172 games).

Statistics

Based on 45,482 master-level games:

  • White wins: 34.7%
  • Black wins: 27%
  • Draws: 38.3%

White holds a moderate edge statistically, though Black has good practical chances.

Common Mistakes to Avoid

  • Neglecting development: In the King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5, it can be tempting to make extra pawn moves early on. However, falling behind in development can be punished quickly, especially in open positions where opponent pieces can find active squares.
  • Allowing White to build an overwhelming center: Hypermodern openings allow White space in the center, but you need to strike back at the right moment. Delaying the counterattack too long can leave you without active play.
  • Playing without a plan: Each position in the King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5 demands a specific approach. Understand whether you should be attacking, defending, or maneuvering before making your move. Random moves lead to random results.
  • Forgetting about piece coordination: Chess pieces are strongest when they work together. A single piece attacking alone is easy to defend against, but coordinated pieces can create unstoppable threats.

Practice on Chessiverse

The best way to learn the King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5 is through practice. On Chessiverse, you can play chess against computer opponents from any opening or custom position. Our AI bots range from beginner to grandmaster level, each with unique playing styles — from aggressive attackers to solid defenders. Choose a bot that matches your rating and work your way up as you master the opening's key ideas.

Quick Facts

Main Line1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5
FENrnbqkb1r/ppp1pp1p/5np1/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq - 1 4
DifficultyIntermediate
Parent OpeningGrünfeld Defense
Style

Hypermodern openings let the opponent occupy the center with pawns, then attack it from the flanks with pieces and fianchettoed bishops. Control is exerted from a distance rather than by direct occupation.

45,482games in database
34.7%
38.3%
27%
White wins Draws Black wins

Top Players

As White
As Black

Data from 365chess.com

Play this opening as...

Frequently Asked Questions

What is the King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5?

The King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5 begins with 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5 and is classified under ECO code D80.

Is the King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5 good for beginners?

The King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5 can be played at any level. Beginners should focus on understanding the key strategic ideas rather than memorizing long theoretical lines. Our AI bots at various rating levels provide a great way to practice the opening concepts.

What are the win rates for the King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5?

In a database of 45,482 master games, White wins 34.7% of the time, Black wins 27%, and 38.3% are drawn. Notable players on the White side include Ivan Farago and Aleksey Dreev. On the Black side, Peter Svidler and Lubomir Ftacnik are among the most frequent practitioners.

How can I practice the King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5?

On Chessiverse, you can practice the King's Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5 by playing against our 600+ AI bots. Each bot has a unique playing style and opening repertoire, so you can find the perfect sparring partner for any level.

Written by

Chessiverse
Chessiverse TeamOpening Guides

Expert chess content backed by opening theory and our database of 600+ AI bots with unique playing styles and opening repertoires.

Practice This Opening on Chessiverse

Play against 600+ AI bots with unique personalities and opening repertoires. From beginner-friendly to grandmaster-level opponents, find the perfect sparring partner for any opening.

Play Now
Back to Articles