New: Leon Luke Mendonca: The Keymer Variation 1.Nf3 d5 2.e3
Grandmaster Leon Luke Mendonca is a rising star in the chess world and one of India's most promising young talents. This year, at age of 17 years, he crossed the 2600 Elo rating barrier (current Elo is 2622) for the first time and is probably one of the most active chess players in 2023 (almost 100 rated games). Leon has recorded a very interesting Fritztrainer on the venomous variation 1.Nf3 d5 2.e3, which most club-level players do not know how to effectively counter. Check out this DVD to enrich your knowledge and increase the arsenal of your opening repertoire. The variation is named after the Germany no.1 GM Vincent Keymer. Photo: ChessBase
The Keymer Variation - 1.Nf3 d5 2.e3
By Leon Mendonca
“People did not take 1.Nf3 d5 2.e3 too seriously until recently, when online chess started becoming popular due to the pandemic, as this opening was used frequently. I discovered how venomous this opening was when I was trying to find a way to play against it with black, and to my surprise this was not easy. Vincent Keymer uses this opening in a huge percentage of his games and gets great positions and results with them. With this opening, White avoids mainstream theory, and there is more than one possibility for each move. The opening is a mix of positional and attacking elements depending on what system black chooses. I think most club-level players would not know how to effectively counter this opening.”

With this opening, White avoids mainstream theory, and there is more than one possibility for each move. The opening is a mix of positional and attacking elements depending on what system Black chooses. I think most club-level players would not know how to effectively counter this opening.”
This video course features the ins-and-outs of the possible setups Black can choose. You’ll learn the key concepts and strategies needed to add this fantastic opening to your repertoire. An easy-to-learn and yet venomous weapon that will make your opening play more versatile.
In addition, this course enables you to practice the repertoire with the ChessBase Opening Trainer. Drilling the opening moves, guessing how a position arose or just replay the moves in your desired speed further reveal the ideas this opening has to offer. Start your journey now!
• Video running time: 6 hours
• With interactive training including video feedback
• Extra: Model games database & Training with ChessBase apps - Memorize the opening repertoire and play key positions against Fritz on various levels
System Requirements
Minimum: Pentium III 1 GHz, 1 GB RAM, Windows 8.1, DirectX 9 graphics card with 256 MB RAM, Windows Media Player 9 and internet access for program activation.
Recommended: PC Intel i7 2.8 GHz, 4 GB RAM, Windows 10 or 11, DirectX10 graphics card (or compatible) with 512 MB RAM or more, 100% DirectX 10 compatible sound card, Windows Media Player 11 and internet access for program activation.
MacOSX
Minimum: MacOS "Yosemite" 10.10
Stream
iPad, tablet, smartphone, PC, laptop etc.
About Leon Luke Mendonca

Luke Leon Mendonca (born 2006) is one of the amazing young talents from India who reached the Grandmaster title at the age of just 14 years. During the pandemic he gained 150+ Elo points and 3 GM norms. Resilience is his forte. Recently, he also crossed 2600 Elo at the age of just 17 years. His opening ideas are not just theoretical in nature, but are put to grave test in praxis against strong opposition.
Related News
New: Regina Theissl-Pokorna - Time Management in Chess
New: Surya Ganguly - Endgame essentials you need to know Vol.1 & Vol.2
New: Ivan Sokolov: Understanding Middlegame Strategies, Vol. 7, Vol. 8 & Vol. 9
New: Luis Engel: Najdorf: A dynamic grandmaster repertoire against 1.e4 Vol. 1 & 2
New: Adrian Mikhalchishin: Master your technique - manoeuvres you must know
New: Andrew Martin - The Sharp Scandinavian with 3...Qd6
New: Robert Ris: Basic Opening Strategy - All you need to know
New: Daniel Fernandez: Weapons against the Caro Kann Vol. 1 + 2
New: Jana Schneider - Beat the French Defence with the Advance Variation
New: Master Class Vol.16: Judit Polgar
New: Fabien Libiszewski: The surprising Janowski Variation (3...a6) in the Queen's Gambit Declined
New: Mihail Marin: Power Strategy 3 - From the middlegame to the endgame
Vidit Gujrathi: Master Advanced Tactics and Calculations like a Super Grandmaster
New: Christian Bauer - The Alekhine revitalised
New: Svitlana Demchenko - The Leningrad Dutch Defence
New: D Gukesh - Attack like a Super Grandmaster
New: Robert Ris: Calculation Training for 1000-1400 and 1400-1600 players
New: Ruslan Ponomariov: Typical opening mistakes
New: Jan Markos: Middlegame Secrets Vol.1 + 2
New: Herman Grooten: Key Concepts of Chess - The Hedgehog
New: Dorian Rogozenco: Play the Sveshnikov Sicilian - A complete repertoire for Black against the open Sicilian
New: Karsten Müller: How to attack - principles of training
New: Making the right decisions in chess - Fundamentals by GM Elisabeth Paehtz
Korchnoi Special: My life for Chess and Master Class Vol. 15 - Viktor Korchnoi
New: The Super Solid Slav Defence by Sipke Ernst
New: Mihail Marin: Tactic Toolbox Italian Game
New: Mihail Marin: A Repertoire against the Italian Game
New: Understanding Middlegame Strategies Vol.5 + Vol.6 by Ivan Sokolov
New: Sicilian Dragon: The Real Deal! Part 2 and 3 by Chris Ward
New: Andrew Martin : The Closed Sicilian
New: Master Class Tactics - Train your combination skills! Vol.1 and Vol. 2
New: Chess Classics - games you must know
New: 3.h4 against the King’s Indian and Grünfeld
New: Move by move - (how to) get into a master's mind! by Daniel King, Simon Williams and Robert Ris
New: Winning Chess Strategies Vol. 1 + 2
New: A Complete Black Repertoire against 1.d4, 1.Nf3 & 1.c4 by Robert Ris
New: The French Defence - Structures, Tactics and plans Vol. 1+2
New: Herman Grooten: Key Concepts of Chess - Pawn Structures Vol. 1+2
New: Top Choice Repertoire: Play the French Defence Vol. 1 & 2 by Rustam Kasimdzhanov
New: Understanding Middlegame Strategies Vol. 3 + Vol. 4 by Ivan Sokolov
New: Robert Ris: Calculation Training Booster
New: The smooth Scandinavian Defence with 3...Qd8 by Robert Ris
New: The Hippopotamus system of defence by Andrew Martin
New: The Scotch Game by Svitlana Demchenko
New: The 4 Player Types standard model by Luis Engel and Karsten Müller
New: Elisabeth Pähtz - Attacking with the Jobava London System
New: Andrew Martin: The Barry Attack
New: Markus Ragger: Power openings: Grünfeld Defence Volume 1 + 2
New: Svitlana Demchenko: Understanding Material Imbalances
Master Class Vol. 8: Magnus Carlsen – new edition!
New: Robert Ris: Calculation Training in Attack & Defence Vol. 1+2
New: Nico Zwirs: The Fianchetto Scandinavian (1.e4 d5 2.exd5 Nf6)
New: Mihail Marin: The Catalan vs. the Semi-Slav, Chebanenko and Triangle
New: Master Class Vol. 14: Vasily Smyslov
New: Nicholas Pert: A Complete Black Repertoire versus the English, 1...e5
New: How to study the classics by Adrian Mikhalchishin
New: The Saemisch Variation against the King's Indian and Benoni by Jan Werle
New: The Flexible Open Spanish by Sipke Ernst
New: Andrew Martin: The Grünfeld Formula
New: Nico Zwirs: The flexible Panov – a weapon against the Caro-Kann
New: Nicholas Pert: A Black Repertoire versus the Anti-Sicilians
The new Fritztrainer - Practical chess strategy: The Bishop
New: Mihail Marin - The English Opening - Tactic and Strategy Toolbox
New: Chris Ward - Sicilian Dragon: The Real Deal!
New: Sergei Tiviakov - How to play the Ruy Lopez with Qe2
New: Sokolov's first Fritztrainer - Understanding Middlegame Strategies Vol. 1 + 2
NEW: Claus-Dieter Meyer / Karsten Müller: Magical Chess Endgames
New: Master Class Vol. 13: Tigran Petrosian
Daniel King: Powerplay 28: Tactic Toolbox King’s Gambit
New: Simon Williams - The Exciting Budapest Gambit
New: Nicholas Pert - An attacking Repertoire with 1.d4
New: How to slay the Sicilian Vol. 1-3 + Tactic Toolbox by Pruijssers and Zwirs
New: Fundamentals of Chess Openings and Tactics by Qiyu Zhou
New: Daniel King: Power Play 27: The King's Gambit
New: Kasimdzhanov: The Benoni is back in Business
NEW: Charlie Storey: The White Sniper
Caruana's "Navigating the Ruy Lopez" - Review by IM Roven Vogel
NEW: Erwin l’Ami: The Benko Gambit Explained
NEW: Mastering the Sicilian Najdorf
NEW: Sicilian The Rossolimo and Moscow Variation Bundle by Jan Werle
NEW: A nightmare for the Najdorf
New: ChessBase Magazine #193
NEW: Mastering Pattern Recognition in the Opening
New: ChessBase Magazine #192
NEW Simon Williams bundle: The London System with 2.Bf4 Reloaded & Tactic Toolbox
Niclas Huschenbeth recommends...
A new generation of FritzTrainers: for Windows and (now) Mac and iOS!
Navigate the Ruy Lopez with Fabiano Caruana
NEW: Nicholas Pert: Typical Mistakes by 1000-1600 Players
8 hours of training material to understand Vishy Anand better!
NEW: Christian Bauer: The nasty Nimzowitsch Defence