Chess Opening · A05

Reti Kings Indian Attack

For sub-1000 ELO players

The Reti Kings Indian Attack (ECO A05) is a slow, flexible opening where White fianchettoes the kingside bishop and delays committing to a central pawn structure. Stockfish 17 at depth 25 evaluates the King's Indian Attack setup via Reti Opening at only +0.1, meaning Black can equalize comfortably by seizing the full center with d5 and e5. Sub-1000 ELO players often play too passively as Black and allow White to build a comfortable position without challenge.

The Best Response

Moves to Play

White · Black alternating

◆1. Nf3 Nf6

◆2. g3 d5

◆3. Bg2 c6

White develops the knight to f3 and fianchettoes the bishop to g2, aiming for a slow positional game. Black responds by claiming the center with d5 and supporting it with c6, building a strong classical pawn presence.

Who Stands Better

Computer score

+0.1

(slight advantage for White)

In plain termsThe position is nearly equal at +0.1. Black has a solid central presence with d5 and c6, and White has not yet committed to a pawn structure.

Copy these moves:

1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bg4 5. d3 e6 6. Nbd2

3 Mistakes Sub-1000 Players Make

These are the patterns we see in games below 1000 ELO. Fix these and you'll stop losing to this opening.

Not seizing the full center

Sub-1000 players as Black often play timidly against the Reti, making quiet moves instead of grabbing central space. They do not realize that White's slow setup gives Black time to occupy the center with pawns.

Best reply: e4

Why it happens: Black sees White developing quietly and mirrors the passive approach instead of recognizing the window to play e5 and dominate the center.

Playing e6 instead of e5

Beginners default to the safe move e6, locking in the light-squared bishop behind the pawn chain. They do not see that the slower White setup allows for the more aggressive e5 push.

Best reply: d4

Why it happens: Black focuses on protecting d5 with e6 but misses that developing the bishop to f5 first keeps it active outside the pawn chain.

Passive dark-squared bishop

Sub-1000 players often leave the dark-squared bishop on f8 for too long or develop it to e7 where it does little. They miss that without a pawn on e5, the bishop can reach an active diagonal.

Best reply: c4

Why it happens: Black sees the fianchettoed bishop on g2 and worries about the long diagonal, forgetting to activate their own dark-squared bishop to a strong central post.

Why This Opening Trips You Up

The Core Problem

Sub-1000 players see White's quiet setup and assume they should play quietly too, missing that the Reti gives Black a free hand to build a strong center.

Before Your Next Game

Against the Reti, remember that slow White play means you have time. Grab the center with d5 and e5, develop your bishops actively, and you will have a comfortable game.