Chessy
Old Indian Defense: Czech Variation, with Nf3 — Black to play
After 1.d4 Nf6 2.c4 d6 3.Nf3 c6, you have reached a flexible but slightly uncomfortable setup for Black. The position is already one where White can ask direct questions, so your job is to stay solid, complete development, and know which replies are most likely. The drill below lets you practise the exact position White reaches, while the engine tests whether you can handle the main continuations without drifting into a worse game.
Play the Old Indian Defense: Czech Variation, with Nf3 against the engine
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Create a free account →What the position is asking from Black
This structure is not about immediate tactical fireworks. It is about surviving the opening with a healthy position and a clear plan. You want to keep your pieces coordinated, avoid loosening your kingside, and be ready for White’s most natural developing moves. Since White is to move, you must expect them to choose a principled continuation and try to keep the initiative. Good defence here starts with patience and piece activity rather than chasing pawns or creating weaknesses.
What the database says about the position
Across 159,550 games at this exact position, White wins 49.9%, draws 4.1%, Black wins 46.0%. That is a practical warning sign: White scores a bit better, and the draw rate is very low, so this opening often leads to a fight rather than a peaceful equal position. The engine agrees. Stockfish rates this +0.77, a clear advantage for White. That means you are clearly worse here, so your main goal is to stay accurate and avoid giving White even more easy play.
The main move to expect
The engine’s best move here is Nc3, and it is also by far the most played continuation, with 96,271 games. The idea is simple: White develops naturally and keeps options open. Other common continuations are g3, e3, Bg5, Bf4, and h3, but Nc3 is the move you are most likely to meet. In the drill, pay special attention to how you meet normal development without allowing White to build a smooth centre and easy piece activity.
The move to be ready to punish
Bg5 is the known mistake in this position. It is an inaccuracy and loses about 0.8 pawns, with Nc3 being better. That makes it an important target for your training: if White plays Bg5, you should recognise that they have already drifted from the most accurate path. Even so, do not relax — your advantage still depends on making sensible moves and not handing the position back with careless defence.
How to handle the other popular plans
White’s other main tries are g3, e3, Bf4, and h3, all of which keep the position playable and move the game toward normal development. The common theme is that White is choosing a solid setup rather than committing to anything forced. For Black, that means you should aim for a stable, coordinated position of your own. If you stay calm, finish development, and avoid unnecessary weaknesses, you give yourself the best chance to work against White’s small but real edge.
Results across 159,550 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Nc3 | 96,271 | 50.3% |
| g3 | 18,386 | 51.5% |
| e3 | 17,263 | 49.5% |
| Bg5 | 14,727 | 46.8% |
| Bf4 | 5,665 | 49.2% |
| h3 | 1,785 | 50.1% |
Frequently asked questions
Is the Old Indian Defense: Czech Variation, with Nf3 good for Black?
It is playable, but this exact position is not fully comfortable for Black. Stockfish rates it +0.77, a clear advantage for White, and the database scores also lean slightly White. So it is a practical defence, but not one where you should expect an easy equal game.
What should I expect White to play here?
Nc3 is the main move by a wide margin, and it is also the engine’s best move. White can also choose g3, e3, Bg5, Bf4, or h3, so you should be ready for quiet developing moves rather than sharp forced lines.
Which move should I watch out for as a mistake?
Bg5 is the known inaccuracy in this position. It loses about 0.8 pawns, and Nc3 was better, so it is a good idea to know when White has stepped off the most accurate path.
What is the main practical aim for Black?
Stay solid and develop smoothly. White already has a clear edge, so your best chance is to avoid loosening your position and to meet White’s natural development with sound piece coordination.
How many games feature the Old Indian Defense: Czech Variation, with Nf3?
Over 159K Lichess games have reached the Old Indian Defense: Czech Variation, with Nf3 position. White wins 49.9%, Black wins 46.0%, with 4.1% draws — based on real rated games.