The Second Weakness: Why One Weakness Is Never Enough – and How Masters Create Two

Dear Chess Friends!

I'm excited to share highlights from my recent workshop "The Second Weakness: How Masters Break Solid Positions", where we explored one of the most important strategic concepts in chess. A single weakness is rarely enough to win – your opponent can concentrate all their forces around it and hold. But when you create a second weakness, the defense becomes overloaded, and something must give. Understanding this principle will transform how you approach seemingly "solid" positions.

Watch the full workshop recording here, and let's examine 4 brilliant examples of the two‑weakness strategy in action.

The Principle of Two Weaknesses

One weakness rarely decides the game. The opponent can concentrate all their defensive resources around that single point – a rook, a bishop, the king itself. You may attack, but the defense has more pieces than you have attackers. Breaking such a fortress is nearly impossible, even with an extra piece.

The solution? Create a second weakness. The classic algorithm:

1. Create one weakness – a backward pawn, a hole, an exposed king.
2. Force the opponent to bring all their resources to defend it.
3. Open a second front – a new weakness on the other flank, a passed pawn, or an invasion square.
4. Watch the defense collapse – when overloaded, pieces cannot run from one side of the board to the other fast enough.

Weaknesses can be of different types:

• A weak pawn (isolated, backward, doubled)
• An exposed king (poor pawn cover)
• Passed pawns threatening to promote
• An immobilized piece (pinned or blockaded)
• A threat of invasion into the opponent’s camp

The takeaway: One weakness is a problem. Two weaknesses are a catastrophe – because one piece cannot defend two weaknesses at the same time.

4 Masterclasses in Creating a Second Weakness

1. Vukic vs. Davcevski (1979) – The Paralyzed Rook Becomes a Target

• 33. h3! 34. g4! 39. gxf5 40. Rg1 41. h4 42. h5! – White already has a huge advantage: the a6 pawn paralyzes the black rook, and the knights tie down the c6 pawn. But how to win? Vukic opens a second front on the kingside. The methodical advance h3, g4, h5 creates a new weakness – the h7 pawn and the g‑file. After 44... Rc8, White sacrifices the knight (45.Nxg6!) to open the h‑file, then invades with Rh7. The second weakness (the exposed h‑pawn) proves fatal, and the a‑pawn queens.
• Lesson: A static advantage (a passed pawn on a6) is not enough by itself. By expanding the front, White forces Black’s pieces to cover two flanks simultaneously – and the defense cracks.

2. Capablanca vs. Schroeder (1916) – From Bishop Weakness to King Hunt

• 19. Ng5! h6 20. Qh7+ Kf8 21. Qh8+ Ke7 22. Qxg7 hxg5 23. Qxg5+ Kd6 – Black’s only visible weakness is the bishop on c5. Capablanca attacks it, but Black can defend. However, Capablanca’s queen check forces the king to walk. Now the black king itself becomes the second weakness! After 24.Ke2, 25.Rc4, 26.Rhc1, the bishop is tied down, but the king is trapped. Finally, 27.h4! creates a passed pawn – a third weakness – and Black collapses.
• Lesson: A single piece weakness can be defended, but when the king becomes exposed, the defense has two problems. Capablanca turned a routine attack into a king hunt – the second weakness overloaded Black’s resources.

3. Karpov vs. Pomar (1974) – The King That Could Not Escape

• 34. Rf8+! Kc7 35. Ba5+! b6 36. Bd2 – White’s rook is active, but the position is roughly equal. Karpov begins to torment the black king with checks, forcing it to a8. The king becomes the first weakness. Then, after 40.b4! and 43.a4, White sacrifices the g4 pawn to create a second weakness – the exposed black king becomes a target for a mating net. When Black finally blunders (44... Ng5??), Karpov delivers a beautiful finish: 47.Bd2! threatening b5#.
• Lesson: Karpov masterfully creates a second weakness out of thin air – the black king’s position. By combining the active rook with the bishop, he overloads the defense of the a‑pawn and the king simultaneously.

4. Botvinnik vs. Alekhine (1938) – Two Weaknesses in a Rook Endgame

• 23. Kf1! 25... g5 26. Ne1! 27. h4! 29. f3! – Botvinnik has a slight advantage: the rook on c7 dominates. But Black’s position is solid. Botvinnik creates a second weakness by provoking Black’s pawns to advance, then fixing them with h4 and f3. The pawn on g5 becomes a target (weakness #2), and the knight gets the outpost f4. After 30.Ne1‑d3‑f4, White threatens both the d5 pawn and the h5 pawn. Black is overloaded and loses material.
• Lesson: In a pure rook and minor piece endgame, the principle of two weaknesses works just as well as in the middlegame. Botvinnik’s patience and precise pawn moves turned a small edge into a win.

"One weakness is a problem. Two weaknesses are a catastrophe – because one piece cannot defend two weaknesses at the same time."

How to Train This Skill

• Study games of Capablanca, Karpov, and Botvinnik – they were masters of the two‑weakness strategy.
• In your own games, when you have a positional advantage, ask: “Where is the second weakness?”
• Practice pawn play on both flanks – a well‑timed pawn push can create a whole new front.
• Don’t rush. Patiently build up pressure on one weakness, then switch to the other.

If you would like to participate in our next event live, you can register here: https://chesslance.com/masterclass/

Your participation is absolutely free.

Have you ever won a game by creating a second weakness? Or lost because your opponent did? Share your stories in the comments below!

Best Regards,
FM Viktor Neustroev