1.e4 or Black Sale
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Courses (1129)

Opening

Elite Najdorf Repertoire for Black - Part 3

GM Pier Luigi Basso · Nov 14, 2026
The course updates the two earlier volumes, with new recommendations, deeper analysis and, in some lines, a different approach from the one published in 2025. It includes theory from weeks before its completion, such as the 18...Rxf2!! exchange sacrifice from Nepomniachtchi–Anand, with lines taken to their theoretical conclusions.
2h 23m PGNendefres Memory Booster Interactive Tests Computer Practice
89.00 EUR
Opening

The Benko Gambit - A Dynamic Repertoire for Black

GM Sina Movahed · Nov 13, 2026
The course presents a Black repertoire based on the Benko Gambit, addressing both 2.c4 and 2.Nf3 move orders, so Black can maintain the same queenside plan in either case. In the accepted main line, the repertoire centers on 5...e6, undermining White's center before recapturing, with particular attention to the sharp 8.Bg5 variation.
2h 59m PGNendefres Memory Booster Interactive Tests Computer Practice
99.00 EUR
Opening

The Ragozin Defense - A Modern Repertoire for Black

GM Abdulla Gadimbayli · Nov 13, 2026
The Ragozin Defense arises after 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4, a move order that blends the structural soundness of the Queen's Gambit Declined with the Nimzo-Indian pin. This course presents a complete repertoire for Black covering all major White responses, including 5.Bg5, 5.e3, 5.Qa4+, 5.cxd5, and 5.a3. The unifying theme is timely central counterplay, primarily through the ...c5 break and, in the 5.Qa4+ Nc6 lines, the freeing ...e5 advance.
2h 26m PGNendefres Memory Booster Interactive Tests Computer Practice
99.00 EUR
Opening

Jobava's Queen's Gambit Accepted - A New Weapon for Black

GM Baadur Jobava GM Pier Luigi Basso+1 more · Nov 12, 2026
This course presents a Black repertoire in the Queen's Gambit Accepted built around the early central break ...c5!, beginning with 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Bg4 5.Bxc4 e6. The repertoire replaces the older ...Nc6 system with sharper, concrete play featuring new moves in critical positions, including the exchange sacrifice sequence 15...Bxh2+! against 6.Nc3.
1h 51m PGNendefres Memory Booster Interactive Tests Computer Practice
89.00 EUR
Opening
Premium

The Sicilian with 2...Nc6 - A Flexible Repertoire for Black

GM Mitrabha Guha · Nov 11, 2026
This course presents a complete Black repertoire after 1.e4 c5 2.Nf3 Nc6, covering the Kalashnikov (4...e5) against the Open Sicilian, 3...g6!? against 3.Nc3 to avoid the Maroczy Bind, 3...d6 against the Rossolimo, and 3...Nf6 against the Alapin. The repertoire is built around recurring strategic ideas rather than forced lines, keeping Black's position dynamic and double-edged across all major White systems.
2h 45m PGNendefres Memory Booster Interactive Tests Computer Practice
99.00 EUR
Opening

Fight the Dutch Defense - A Complete Repertoire for White

GM Pier Luigi Basso · Nov 10, 2026
This course presents a complete White repertoire against the Dutch Defense based on 1.d4 f5 2.Bg5, a positional approach that immediately removes Black's Classical and Stonewall setups from the board. Against Black's most critical response, 2...h6 3.Bh4 g5 4.e3 Bg7 5.Bg3 c5 6.c3 Qb6, the repertoire centers on the novelty 13.Qd1!N, which yields White a lasting edge in the line Black relied on for equality. All major alternatives to 2.Bg5 are covered, including 2...Nf6, 2...g6, 2...d6, 2...c5, and 2...c6.
1h 37m PGNendefres Memory Booster Interactive Tests Computer Practice
89.00 EUR
Opening
Repertoire Builder

French Defense for Black - Fundamental Structures in the Tarrasch Variation

GM Grigor Grigorov · Nov 9, 2026
This course examines the French Defence Tarrasch Variation (3.Nd2), focusing on the pawn structure that arises after 3...c5 4.exd5 exd5 and the subsequent dxc5, leaving Black with an isolated queen's pawn on d5. It explores the dynamic middlegame potential of this structure alongside its endgame implications, and covers the principal sidelines where White carries the isolated pawn instead.
6h PGNen Interactive Tests
79.00 EUR
Opening

King's Indian Defense - Repertoire for Black - Part 7 - Facing the English

GM Andrea Stella GM Baadur Jobava+1 more · Nov 8, 2026
This course completes a seven-part King's Indian repertoire for Black by addressing the English and Réti move orders, including systems where White delays d4 or avoids it entirely. Black's approach centers on seizing the center with moves such as ...e5, ...d6, and ...c5, with tailored responses to the Botvinnik System, the Classical Réti, the Keymer System, and the Old Indian Attack. The course draws on elite games from 2025 and 2026 and presents more than twenty novelties.
4h 14m PGNendefres Memory Booster Interactive Tests Computer Practice
115.00 EUR
Opening

The Benoni against 2.Nf3 - 1.d4 Nf6 2.Nf3 c5 for Black

GM Romain Edouard IM Dragos Ceres+1 more · Nov 7, 2026
This course addresses the move orders White uses to sidestep the Modern Benoni, focusing on 1.d4 Nf6 2.Nf3 c5 and the immediate queenside expansion 3...b5. It also covers 2.Bf4 and 2.Bg5, providing a unified Black repertoire against these anti-Benoni systems. The key ideas include the doubled f-pawn as an asset via the ...f5 break, engine-inspired resources such as 5...Qa5+! and 7...c4!, and improvements over recent grandmaster practice.
2h 26m PGNendefres Memory Booster Interactive Tests Computer Practice
89.00 EUR
Opening

Beat the London, Trompowsky and 1.d4 Nf6 Sidelines - A Repertoire for Black

GM Pier Luigi Basso IM Deboushnik De+1 more · Nov 6, 2026
This course presents a complete Black repertoire against 1.d4 sidelines that avoid an early c4, targeting the systems built around White's dark-squared bishop. Against the London, the approach runs through 1.d4 Nf6 2.Nf3 e6 3.Bf4 b6 and 6...Nh5, while the Torre is met with 7...a6 and the Trompowsky with 2...c5 3.d5 Ne4 4.Bf4 e6 5.f3 Bd6. The repertoire is unified by 1...Nf6 and ...e6, integrating with Queen's Indian-based systems against 1.d4 2.c4.
PGNendefres Memory Booster Interactive Tests Computer Practice
99.00 EUR