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Removing the Defender: Undermining the Defense
Removing the Defender (also called Elimination of the Guard or Undermining) is a tactic used to destroy the opponent's coordination. When a piece performs a vital defensive task—like guarding a piece, a mate threat, or a key square—you remove it (usually by capture) to leave the target defenseless.
🛡️ Collapse insight: Every fortress has a keystone. If you remove the defender, the wall falls. Train your eyes to spot the one piece holding their position together and eliminate it.
Removing the Defender Examples
Removing the defender is a tactical idea where a key guarding piece is eliminated, deflected, or forced away, causing the entire position to collapse. Once the defender disappears, threats that were previously impossible suddenly work. The examples below show the most common ways defenders are removed and how this leads directly to winning material or checkmate.
1. Uhlmann vs. Schwartz
Uhlmann vs Schwartz
1.Nd5!
and black resigned due to e.g. 1...exd5 2.Bxf6 threatening both Bxe7 and Qh7 mate
and black resigned due to e.g. 1...exd5 2.Bxf6 threatening both Bxe7 and Qh7 mate
2. Deflection and Interference
Kharitonov vs Petrushin
1. Rd8+
1-0 (1...Rxd8 2. Qxa1) or (1...Nxd8 2. Qf8+ Rg8 3. Qxg8 mate)
1-0 (1...Rxd8 2. Qxa1) or (1...Nxd8 2. Qf8+ Rg8 3. Qxg8 mate)
3. Deflection
Karaklajics vs Nikolics
1. Qa5
Ne8 (2.Qd8+ Nxd8 3. Na7++) 2. Na7+, Nxa7 (3. Qd8++) 3. Rd8++
Ne8 (2.Qd8+ Nxd8 3. Na7++) 2. Na7+, Nxa7 (3. Qd8++) 3. Rd8++
4. Lalic vs. Cox
Lalic vs Cox
1.Bxe6
Nxe6 2.Rxg7 Nxg7 (2...Kxg7 3.Nxe6+) 3.Qxh6+ and black resigned due to Qh7 mate
Nxe6 2.Rxg7 Nxg7 (2...Kxg7 3.Nxe6+) 3.Qxh6+ and black resigned due to Qh7 mate
5. Prosecuting the attack
Oral T vs Kantorik M
1.Bxd5
Nxd5 2.Qxd5 1-0 (2...,Qc7 (forced) 3. Qg5+, f6 4.Qxg7 wins)
Nxd5 2.Qxd5 1-0 (2...,Qc7 (forced) 3. Qg5+, f6 4.Qxg7 wins)
6. Removing defenders of f7
Riasantsev vs Aseev
1. Qf6+
Nxf6 2. exf6+ Kh8 3. fxe7 Re8 4. Rxf7 Qd6 5. Be6
Nxf6 2. exf6+ Kh8 3. fxe7 Re8 4. Rxf7 Qd6 5. Be6
⚡ Chess Tactics Guide
This page is part of the Chess Tactics Guide — Learn chess tactics through core patterns and practical training — from forks, pins, and skewers to discovered attacks, deflection, and mating ideas.
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