Blunder Knight lesson · Semmering · 1926

Nimzowitsch Locks Rubinstein Down

Watch the famous game, then train the tactics that made it work.

White
Nimzowitsch, Aaron
Black
Rubinstein, Akiba
Result
1-0
Focus
Tactics + development
Big lesson

The lesson is not just the tactic — it is how the position made the tactic possible.

Board + puzzle feel

Chess.com-familiar, saved for you.

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Replay the lesson

Move through the key positions like an analysis board.

Position 1 / 10 · Cold Open Puzzle

Cold Open Puzzle

Find the move. Rubinstein looks close to escaping, but White can turn the h-file into a trap. What candidate move breaks the shield?

Practical takeaway

Pause before grabbing material: king safety, development, and forcing moves decide the tactic.

Training puzzles from this game

Find the move, then prove you saw the idea.

This is the Chess.com-style flow: clear task, playable board, instant feedback, then the explanation.

Analyze my games for these motifs
Puzzle 1white to movecapture / material decision

Capture / Material Decision

Can you find it?

Find 38. Bxh6. What is the idea?

Drag the move on the board, or type the move if you already see it.

Need a hint?

The answer is a capture / material decision idea. Start by checking forcing moves.

Solution: Bxh6Bxh6 is a forcing move. It keeps initiative by using capture / material decision pressure, so the defender has to respond before solving the larger king-safety problem.

Puzzle 2white to movecapture / material decision

Capture / Material Decision

Can you find it?

Find 34. Bxe1. What is the idea?

Drag the move on the board, or type the move if you already see it.

Need a hint?

The answer is a capture / material decision idea. Start by checking forcing moves.

Solution: Bxe1Bxe1 is a forcing move. It keeps initiative by using capture / material decision pressure, so the defender has to respond before solving the larger king-safety problem.

Puzzle 3white to movecapture / material decision

Capture / Material Decision

Can you find it?

Find 30. bxc4. What is the idea?

Drag the move on the board, or type the move if you already see it.

Need a hint?

The answer is a capture / material decision idea. Start by checking forcing moves.

Solution: bxc4bxc4 is a forcing move. It keeps initiative by using capture / material decision pressure, so the defender has to respond before solving the larger king-safety problem.

Puzzle 4white to movecapture / material decision

Capture / Material Decision

Can you find it?

Find 25. Qxa4. What is the idea?

Drag the move on the board, or type the move if you already see it.

Need a hint?

The answer is a capture / material decision idea. Start by checking forcing moves.

Solution: Qxa4Qxa4 is a forcing move. It keeps initiative by using capture / material decision pressure, so the defender has to respond before solving the larger king-safety problem.

Puzzle 5white to movecheck

Check

Can you find it?

Find 24. Nxf7+. What is the idea?

Drag the move on the board, or type the move if you already see it.

Need a hint?

The answer is a check idea. Start by checking forcing moves.

Solution: Nxf7+Nxf7+ is a forcing move. It keeps initiative by using check pressure, so the defender has to respond before solving the larger king-safety problem.

From famous game to your games
1

Watch the moment

See why the tactic worked in the original game.

2

Solve the pattern

Train the same motif before revealing the answer.

3

Import your games

ChessCoach finds similar mistakes and chances in your own play.

Import my games and build my training plan →

Full PGN

[Event "Semmering"]
[Site "Semmering"]
[Date "1926.??.??"]
[Round "?"]
[White "Nimzowitsch, Aaron "]
[Black "Rubinstein, Akiba"]
[Result "1-0"]
[WhiteElo ""]
[BlackElo ""]
[ECO "A06"]

1.Nf3 d5 2.b3 c5 3.Bb2 Nc6 4.e3 Nf6 5.Bb5 Bd7 6.O-O e6 7.d3 Be7 8.Nbd2 O-O
9.Bxc6 Bxc6 10.Ne5 Be8 11.f4 Nd7 12.Nxd7 Qxd7 13.e4 f6 14.Qf3 Bf7 15.a4 b6
16.Rae1 a6 17.f5 dxe4 18.Qxe4 e5 19.Re3 b5 20.Rg3 Kh8 21.Nf3 bxa4 22.Nxe5 Qe8
23.Qg4 Rg8 24.Nxf7+ Qxf7 25.Qxa4 Qd5 26.Qg4 Bd8 27.Qg6 h6 28.Re1 Qd7 29.Re6 c4
30.bxc4 Rb8 31.Bc3 Rb1+ 32.Re1 Bb6+ 33.Kf1 Rxe1+ 34.Bxe1 Qa4 35.Rh3 Rf8 36.Bc3 Bd8
37.Bd2 Qxc2 38.Bxh6 Qb1+ 39.Ke2 Qc2+ 40.Ke3 Bb6+ 41.Ke4 Qe2+ 42.Re3  1-0

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