For most of its history, the London System was the opening you reached for when you wanted a quiet life. Baadur Jobava changed the question. By slipping the knight to c3 before the bishop appears — 1.d4 d5 2.Nc3 Nf6 3.Bf4 — he kept everything that made the London easy to learn and added what the classical version never had: a direct route to creating attacking chances. The early Nc3 unlocks the thematic Nb5 jump against the weak c7-square and clears the way for the Qd2–Bh6 plan against the fianchetto. That is the idea running through this repertoire from start to finish — the London, rebuilt as an attacking system.
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4h 43m PGN Download Memory Booster Interactive Tests Computer Practice
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When IM Filip Pancevski took up the King's Indian Defence at age 12, he couldn't have imagined he'd still be wielding it more than two decades later—through database explosions, engine revolutions, and countless theoretical novelties. Yet here we are. The KID has survived every computational assault not because the positions are "objectively equal" (they often aren't), but because the resulting chaos favors the player who understands the ideas over the one who memorizes computer lines.
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6h 22m PGN Download Memory Booster Interactive Tests Computer Practice
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GM Baadur Jobava and GM Andrea Stella continue their King's Indian Defense series for Black with a complete repertoire against the Makogonov 5.h3 — the flexible system Carlsen, Caruana, and Giri reach for when they want to squeeze without overextending. Across 11 chapters, the course offers clear structural plans for every White setup, with several rare lines that take Black off the database by move eight.
Sequence: King's Indian Defense According to Jobava »
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4h 44m PGN Download Memory Booster Interactive Tests
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GM Vladimir Malakhov and GM Pier Luigi Basso present the fourth volume of Malakhov's Structures series — a complete strategic study of the Exchange Slav pawn structure from Capablanca's era to today. Across model games, typical endgames, and Basso's own practical experience, the course reveals how minimal asymmetries in this deceptively symmetrical structure become decisive at every level of play.
Sequence: Malakhov's Slav Defense »
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6h 40m PGN Download Memory Booster Interactive Tests
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The Slav Defense has long held a unique status among Black's responses to 1.d4—a reputation for solidity without passivity, resilience without concession. While other defenses against the Queen's Gambit force Black into early structural commitments or passive piece placement, the Slav allows natural development and maintains central tension.
GM Mahammad Muradli's Slav Defense — Full Repertoire for Black delivers a complete, practical repertoire centered on the Classical Slav with 4...dxc4, designed for players who value long-term reliability over short-term fashion.
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5h 20m PGN Download Memory Booster Interactive Tests Computer Practice
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Twenty years of practical refinement, now brought to completion. GM Vladimir Malakhov, one of the world's foremost Chebanenko experts, returns to finish what Part 1 began.
Where the first volume covered White's most critical tries—5.c5, 5.e3, and 5.g3—this second part closes every remaining door. The anti-Chebanenko systems, the sidelines, the move-order tricks that strong players use to avoid main theory: all of them are met with concrete solutions.
This is not supplementary material; this is the completion of a professional repertoire that has weathered decades of grandmaster practice.
Sequence: Malakhov's Slav Defense »
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2h 35m PGN Download Memory Booster Interactive Tests
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For decades, the great unsolved question of 1. For decades, the great unsolved question of 1.d4 d5 has been everything that isn't 2.c4. Dreev and Basso solve it through a unified Black system built on principle rather than memorization, anchored by a revolutionary new idea against the London. The third volume completing the authors' QGD series — and the final piece of a comprehensive repertoire against every first move White can choose.
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4h 37m PGN Download Memory Booster Interactive Tests Computer Practice
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GM Ulf Andersson — former World No. 4 — joins GM Petar Arnaudov for an engine-free discussion of eight of his own games in the Nimzo-Indian and Bogo-Indian structures he played as Black throughout his career. A rare chance to listen to a legendary positional player explain his own work.
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3h 53m PGN Download Interactive Tests
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The Queen's Indian Defense has long been chess's quiet answer to 1.d4 — a hypermodern system where Black controls the center from a distance rather than occupying it directly. Yet for decades, players seeking active counterplay gravitated toward sharper systems like the King's Indian, treating the Queen's Indian as a fallback option.
GM Mitrabha Guha challenges that assumption head-on. In his debut Modern Chess course, the Indian grandmaster presents the Queen's Indian not as a drawing weapon, but as one of the rare Black openings where you can genuinely play for the win against 1.d4. His repertoire is built around 4...Bb7 rather than the more forcing 4...Ba6, emphasizing deep positional understanding over memorization — a choice that makes the opening both more resilient and more instructive.
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2h 31m PGN Download Memory Booster Interactive Tests Computer Practice
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The Slav Defense with 4...Bf5 has always been Black's most principled attempt to solve the opening's central problem: developing the light-squared bishop before closing the position with ...e6. It's theoretically sound, strategically ambitious, and demands precise understanding rather than pure memorization.
In this second volume of their Positional Slav for White repertoire project, GM Alexey Dreev and GM Pier Luigi Basso present a classical yet deeply modern approach built around the flexible 7.Be2 — delaying Nxg6 until White can dictate the most favorable moment for the exchange. But what sets this course apart is its format: most chapters are structured as analytical conversations between the two authors, exploring not just what to play, but how to think in these middlegames.
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4h 25m PGN Download Memory Booster Interactive Tests Computer Practice
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