Nimzowitsch Defence Against 1.e4
1.Nf3 - Practical Repertoire for White

Supi vs the Sicilian - Part 2 

GM Luis Supi December 19, 2025 Sicilian Defense1.e4

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Introduction and Free Preview  Free
Video Introduction  Closed
Introduction  Closed
Theory 1 - Video Lecture 1  Closed
Theory 1 - Video Lecture 2  Closed
Theory 1 - e6-d6 Variations  Closed
Theory 1 - Memory Booster  Closed
Theory 2 - Video Lecture 1  Closed
Theory 2 - Video Lecture 2  Closed
Theory 2 - d5 Lines  Closed
Theory 2 - Memory Booster  Closed
Theory 3 - Video Lecture  Closed
Theory 3 - 4...g5 - Critical Line  Closed
Theory 3 - Memory Booster  Closed
Exercise 1 - Warm up!  Closed
Exercise 1 - Solution  Closed
Exercise 2  Closed
Exercise 2 - Solution  Closed
Exercise 3  Closed
Exercise 3 - Solution  Closed
Exercise 4  Closed
Exercise 4 - Solution  Closed
Exercise 5  Closed
Exercise 5 - Solution  Closed
Anton Guijarro, David - Starozhilov, Leonid  Closed
Livaic, Leon - Nihal, Sarin  Closed
Rasulov, Vugar Ural Oglu - Sindarov, Javokhir  Closed
So, Wesley - Caruana, Fabiano  Closed
Supi, Luis Paulo - Akhayan, Ruben  Closed
So, Wesley - Caruana, Fabiano  Closed
Carlsen, Magnus - Firouzja, Alireza  Closed
Carlsen, Magnus - Ashraf, Artin  Closed
Carlsen, Magnus - Narayanan, Sunilduth Lyna  Closed
Nihal, Sarin - Dubov, Daniil  Closed
Andreikin, Dmitry - Lazavik, Denis  Closed
Grischuk, Alexander - Andreikin, Dmitry  Closed
Firouzja, Alireza - Aronian, Levon  Closed
Firouzja, Alireza - Ibarra Jerez, Jose Carlos  Closed
Carlsen, Magnus - Jimenez Almeida, Luis David  Closed
Grischuk, Alexander - Van Foreest, Jorden  Closed
Test Section  Closed

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Supi vs the Sicilian - Part 2: The Quiet Revolution

When Magnus Carlsen deployed an opening idea against Firouzja, the chess world took notice. But the story of 3.Bd3 against the Sicilian with 2...e6 begins earlier—in the quiet analytical work of GM Luis Paulo Supi during the pandemic. While tournaments were suspended and the chess world moved online, Supi was perfecting a weapon that would consistently deliver winning positions even against very strong opposition. The move looked unassuming - 3.Bd3. No sharp tactical blow, no forcing continuation—just a bishop quietly placed on d3. Yet this simple developing move contains a profound strategic challenge that Black must answer correctly or face persistent pressure.

The Strategic Challenge

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What makes 3.Bd3 so deceptive is its flexibility. White's plan appears modest: 0-0, Re1, c3, Bf1, d4—a simple regrouping that promises nothing spectacular. But therein lies the trap. Black cannot simply complete development and hope for equality. Without concrete action, White's setup becomes suffocating. Supi identifies two critical responses: the aggressive ...g5 (the "most critical variation" featuring "totally new concepts") and the central break ...d5 (which can arise in various move orders). Anything else, and Black can drift into a worse position quite easily. This is the quiet revolution—an opening where doing nothing wrong isn't enough. You must do something right.

Supi vs the Sicilian - Part 2 continues directly from Part 1, completing Supi's comprehensive repertoire against the Sicilian Defense. Where Part 1 addressed other Sicilian systems, Part 2 tackles the flexible 2...e6, offering a fresh alternative to the heavily analyzed main lines. Supi brings a unique perspective to this material—having played 2...e6 himself for over a decade, he understands Black's resources intimately. His pandemic-era discovery of 3.Bd3's potential, validated through online practice and later by Carlsen's adoption, provides students with a thoroughly tested weapon that remains underestimated at the highest levels.

Variation Map

After 1.e4 c5 2.Nf3 e6 3.Bd3, Black faces several critical decisions:

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Main Defensive Tries:

Each variation requires precise handling, as neutral play favors White's regrouping plan.

Course Structure

This isn't about memorizing forced lines. It's about understanding why 3.Bd3 creates problems that standard Sicilian knowledge doesn't solve. Supi promises "a new and powerful weapon against 2...e6 for many years ahead"—not through tactical fireworks, but through strategic depth that rewards understanding over memorization.

INTRODUCTION BY THE AUTHOR

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