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The classical Italian opening — fast piece development, central control, and rich attacking ideas. The perfect first opening.

The 'very quiet game' — slow strategic Italian where positional understanding wins.

Sacrifice a pawn on move 2 for a crushing attack. Romantic chess at its finest.

Open the center fast with 3.d4 — sharp tactical play from move three.

A flexible alternative to the Italian — Nc3 prepares f4 with a powerful attack.

Symmetric, solid, and deeply principled — both sides develop minor pieces first.

The Spanish — chess's deepest opening. Start with the fundamentals.

Kramnik's weapon — neutralize 1.e4 with the rock-solid Berlin Wall.

1.d4 — the foundation of positional chess. Learn the principles before the theory.

Counter 1.e4 with 1...d5 — immediately challenge the center and avoid memorization.

Sacrifice the b-pawn for a furious attack against the Italian setup.

The same setup against everything — d4, Nf3, Bf4. Easy to learn, hard to refute.

An aggressive king's-pawn system: White develops the bishop to c4 before the knight, eyeing f7 and keeping the f-pawn free for f4 ideas.

An aggressive d4-gambit against the Dutch (1.d4 f5 2.e4!?) sacrificing a pawn to open lines, develop quickly, and target Black's weakened king-side.

The Sicilian Najdorf is a sharp and ambitious defense for Black, aiming for an imbalanced game with rich strategic and tactical possibilities. By controlling the center and preparing queenside counterplay, Black challenges White's initiative from the very beginning, leading to some of the most complex and exciting positions in chess.

The Sicilian Dragon is a sharp and aggressive variation of the Sicilian Defense, characterized by Black's fianchetto of the dark-squared bishop to g7. This 'Dragon bishop' exerts powerful pressure along the h8-a1 diagonal, creating dynamic and complex middlegames. Black aims for active counterplay, often against White's kingside attack in the Yugoslav Attack.

The Caro-Kann Defense is a highly respected and solid response to 1.e4, characterized by the move 1...c6. Black prepares to challenge the center with ...d5 without creating the structural weaknesses of the French Defense, often leading to sound pawn structures and excellent endgame prospects.

The French Defense (1.e4 e6) is a solid and resilient opening choice for Black. By challenging White's central control early, Black aims for a strategically complex game with counter-attacking chances, often involving a queenside pawn break or direct pressure against White's center.

The Queen's Gambit Accepted is a solid and reliable response to White's Queen's Gambit (1.d4 d5 2.c4). By playing 2...dxc4, Black temporarily cedes the center but gains free and active piece development. The opening often leads to dynamic, open games where Black challenges White's central control.

The Queen's Gambit Declined (QGD) is one of the most solid and reliable responses to 1. d4. By playing 2...e6, Black establishes a firm foothold in the center, forgoing the immediate capture of the c4-pawn in favor of sound development and a stable pawn structure. The QGD leads to rich, strategic battles where positional understanding is often more important than tactical fireworks.

The Slav Defense (1. d4 d5 2. c4 c6) is a solid and reliable response to the Queen's Gambit. By supporting the d5-pawn with ...c6 instead of ...e6, Black keeps the diagonal for the c8-bishop open, aiming for active piece play and a resilient pawn structure.

The Semi-Slav Defense is a robust and ambitious response to the Queen's Gambit, characterized by a central pawn triangle on c6, d5, and e6. It blends the solidity of the Queen's Gambit Declined with the dynamic potential of the Slav Defense, often leading to complex and sharp strategic battles. Black aims for solid development while waiting for the right moment to challenge White's control of the center.

A flexible Indian system for Black: 3...Bb4+ pins or trades to ease development before deciding on a central structure.

A combative defense for Black: a queenside pawn majority, kingside fianchetto, and chronic dynamic imbalance.

Black's deeper repertoire in the Nimzowitsch Defense (1.e4 Nc6). Seven drills cover the Bogoljubow Closed with 3...e6, the modern 4...Nb8 retreat, the Advance 3.e5 f6 break, the bold 2...e5 counter-gambit, the 2.Nf3 d6 ...Bg4 pin line, the Exchange ...Bg4 active queen treatment, and the sharp 5.f4 sideline.

Black's hypermodern reply to 1.d4: cede the center, fianchetto the king's bishop, then strike back with ...e5 and ...f5. Sharp, attacking, club-player favourite.

Fianchetto the king's bishop and squeeze Black on the long diagonal. A modern positional weapon used at every top tournament.

1.d4 Nf6 2.Bg5 — pin the knight on move 2 and sidestep every Indian and King's Indian setup. The Tromp is a low-theory, high-pressure system used by Carlsen, Hodgson and Adams to dodge Black's prep entirely.

Sidestep miles of Open Sicilian theory: keep the d-pawn home, fianchetto on g2, and launch a slow kingside pawn storm with f4–f5.

Black's complete intermediate repertoire in the Sicilian Kan (1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6). Seven drills cover the 5.Bd3 Hedgehog mainline, the Maróczy Bind 5.c4, the 5.Nc3 Qc7 Reti, the 5.Nc3 b5 push, the 5.Bd3 Bc5 Bronstein, the 5.Be2 Classical, and the 5.g3 Fianchetto.

White's complete intermediate repertoire in the Sokolsky/Polish Opening (1.b4). Seven drills cover the main 1...e5 with 2.Bb2 Bxb4 3.Bxe5, the solid 1...d5, 1...Nf6 with c4 anti-Indian, 1...c6 outflank with a3, 1...a5 Birmingham, the French-style 1...e6, and the mirror 1...b6 with d4.

White's complete intermediate repertoire in the Center Game (1.e4 e5 2.d4 exd4 3.Qxd4). Seven drills cover the Mieses Main Line with ...Bb4 and Nxe4 sacrifice, the solid ...Be7 defense, the fianchetto ...g6 setup, the solid ...Bd6 block, the quiet ...d6, the early check ...Bb4+, and the quiet 3...d6 hybrid.

Start with 1.c4 — flexible, principled, and impossible to memorise away. The favourite weapon of Kasparov, Botvinnik and Carlsen.

A universal White system — fianchetto the bishop, castle short, then unleash a kingside pawn storm with e4-e5 and h4-h5.

A hypermodern White system that delays central pawn advances, attacks d5 from the flank with c4 and fianchettoes the king's bishop on g2.

An aggressive reply to 1.d4 where Black grabs kingside space with ...f5 and fights for the dark squares with multiple distinct setups — Classical, Leningrad, and Stonewall.

The hypermodern Modern Defense — meet 1.e4, 1.d4, or 1.c4 with 1...g6, fianchetto the bishop, and counterattack White's center from afar.

Also called the Russian Defense. Meet 1.e4 e5 2.Nf3 with 2…Nf6, copying White's threat instead of defending. A symmetrical, principled weapon used at the highest level to neutralize aggressive 1.e4 players.

Meet 1.e4 e5 2.Nf3 with the classical 2…d6 — defend e5 with the pawn and build a compact, hyper-solid setup. A favorite weapon of the great Philidor himself, revived today by elite Black players who want zero risk and full understanding.

Meet 1.d4 d5 2.c4 e6 3.Nc3 with the dynamic 3...c5 — accept an isolated d-pawn in exchange for free piece play and open lines. Siegbert Tarrasch's classical Black weapon, revived by Spassky, Kasparov, and modern grandmasters.

Black's complete intermediate repertoire in the Sicilian Scheveningen (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6). Seven drills cover the Classical 6.Be2, English Attack 6.Be3, Keres Attack 6.g4, Fianchetto 6.g3, 6.f4 Tal Attack, Sozin 6.Bc4, and Adams 6.h3.

Black's complete intermediate repertoire in the Albin Counter-Gambit (1.d4 d5 2.c4 e5 3.dxe5 d4). Seven drills cover the 5.g3 Be6 mainline, 5.g3 Bg4 pin, 5.a3 Spassky, 5.Nbd2 solid defence, 4.e3 declined, the 5...Nge7 setup, and the rapid 5.g3 Be6 / ...Bh3 plan.

Black's complete intermediate repertoire in the Englund Gambit (1.d4 e5). Seven drills cover the 3...Qe7 4.Bf4 mainline trap, the 4.Nc3 sidestep, the Soller Gambit 2...f6, the Blackburne-Hartlaub 2...d6, the Zilbermints 3...Nge7, the Felbecker 3...d6, and the King's Indian-style answer to the declined 2.d5.

White's complete intermediate repertoire in the Blackmar-Diemer Gambit (1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3). Seven drills cover the Teichmann 5...Bg4 mainline, the Ziegler 5...c6 with the Nxe6 sacrifice, the Euwe 5...e6, the Bogoljubow 5...g6, the Gunderam 5...Bf5 with the kingside storm, the declined Lemberger 3...e5, and the declined Vienna 3...Bf5.

White's complete intermediate repertoire in Bird's Opening (1.f4). Seven drills cover the From's Gambit declined mainline, the Leningrad Bird (reversed Dutch), the Classical Bird with e3/Be2, the Stonewall Bird with b3/Bb2, the From's Lasker ...Nf6, the King's Indian setup ...g6/...Bg7, and the ...c5 English hybrid.

Black's complete intermediate repertoire in the Sicilian Classical (1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6). Seven drills cover the Richter-Rauzer mainline with ...a6, the Bondarevsky 7...Be7, the Boleslavsky 6.Be2 e5, the English Attack 6.Be3 e5, the Sozin 6.Bc4 with ...Na5, the Fianchetto 6.g3, and the Anti-Sicilian 6.f3.

Black's complete intermediate repertoire in the Sicilian Taimanov (1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6). Seven drills cover the Classical 6.Be2 Hedgehog, the English Attack 6.Be3, the Maróczy Bind 5.Nb5 d6 6.c4, the Fianchetto 6.g3, the Nimzowitsch 6.Nxc6, the sharp Szen 6.f4, and the Reshevsky-style ...Bb4 line.

Black's intro repertoire in the Sicilian Sveshnikov (1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5). Seven drills cover the 9.Nd5 mainline with ...Bg5, the Chelyabinsk 8.Bxf6 gxf6, the Anti-Sveshnikov 7.Nd5, the 11...Ne7 trade, the 7.a4 sideline, the 9.Bxf6 sub-mainline, and the 7...Be7 delayed ...a6 move-order.

Black's complete intermediate repertoire in the Sicilian Four Knights (1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6). Seven drills cover the sharp 6.Nxc6 e5 main line with ...Bb4+/...f5, the quieter 7...f5 simplification, the 6.Ndb5 Sveshnikov transposition, the Adams Attack 6.a3, the Pin variation 6.Be2 Bb4, the 6.g3 Fianchetto, and the quiet trade 6.Nxc6 7.Bd3.

Black's complete intermediate repertoire in the Sicilian Paulsen (1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 with ...Qc7). Seven drills cover the 5.Bd3 Modern Hedgehog, the Classical 5.Nc3 Qc7 6.Be2 with ...Bb4, the English Attack 6.Be3 with the ...d5 break, the Maróczy 5.c4 with ...Bb4/...d5, the Szen 6.f4, the Fianchetto 6.g3, and the Paulsen Exchange 5.Bd3 Nc6 6.Nxc6 dxc6.

Black's complete intermediate repertoire in the Sicilian O'Kelly (1.e4 c5 2.Nf3 a6) — the move-order that punishes the automatic 3.d4 and steers other tries into favourable Paulsen / Hedgehog waters. Seven drills cover the 3.c3 Alapin met by ...d5, the 3.c4 Maróczy with ...Bb4/...d5, the 3.d4 punish with 5...e5, the 3.Nc3 Paulsen transposition, the 3.Bc4 Italian-style, the 3.g3 KIA, and the 3.c3 Nf6 Alapin Advance.

White's complete intermediate repertoire in Larsen's Opening / Nimzo-Larsen Attack (1.b3). Seven drills cover the classical 1...e5 with Na3-Nc4 maneuver, the 1...d5 KIA hybrid, the anti-Sicilian 1...c5 with the Ne1-f3/f4 plan, the 1...Nf6 double fianchetto, the 1...e6 quiet Hedgehog, the 1...b6 mirror with the d5 wedge, and the 1...g6 Modern Defence with c4/d4/d5.

White's complete intermediate repertoire in the Grob Attack (1.g4). Seven drills cover the main 1...d5 Spike with h3/g5, the Grob Gambit after 1...d5 2.Bg2 Bxg4 3.c4, the classical 1...e5 challenge, the 1...c5 English-style reply, 1...Nf6 met by g5, the 1...g6 counter-fianchetto, and the restraining 1...h6.

Black's complete intermediate repertoire in the Nimzowitsch Defense (1.e4 Nc6). Seven drills cover the 3.Nc3 main line with the famous knight leap to e5, the 3.e5 Advance variation French-style, the 3.exd5 Exchange, the 2.Nf3 Nimzowitsch variation with ...d6 and a Pirc setup, the 2.Nc3 Vienna-like transposition, Bogoljubow's 2.Bb5, and the 2.c4 English transposition.

White's complete intermediate repertoire in the Ruy Lopez Exchange Variation (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6). Seven drills cover the main 5.O-O dxc6 line with d4 break, the Bronstein pin with ...Bg4, Lasker's 5.Nc3 system, the 4...bxc6 sideline, 5...Qd6 solid setup, the 5...Bd6 Steinitz, and the 6...Bg4 trade tension.

Black's intro repertoire in the Marshall Attack (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5!). Seven drills cover the main 12.d4 Bd6 line, the modern 12.d3 with ...g5, the refused 12.Bxd5 line, and four anti-Marshall systems: 8.h3, 8.a4, 8.d4 Centre Attack, and 8.d3.

Black's complete intermediate repertoire in the Two Knights Defense (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6). Seven drills cover the sharp Polerio main with 5...Na5, the wild Fritz 5...Nd4, the Canal endgame with 5...Nxe4, the Modern Attack with 5...d5, the Italian Quiet with 4...Bc5, the Knorre Quiet with 6.d3, and the Steinitz Counter with 5...Ng4.

White's complete intermediate repertoire in the Ponziani Opening (1.e4 e5 2.Nf3 Nc6 3.c3). Seven drills cover the Réti Gambit main line with 3...Nf6 4.d4 Nxe4 5.d5, the Steinitz Defense with 3...d5 4.Qa4, the solid Vukovic 3...d6, the wild Ponziani Countergambit 3...f5, the flexible Réti 3...Nge7, the modern 3...g6 fianchetto, and Caro's quiet 3...Be7.

White's complete intermediate repertoire in the Danish Gambit (1.e4 e5 2.d4 exd4 3.c3). Seven drills cover the Danish Accepted main line with Bxb2, the Schlechter Defense with 4...Nf6, Capablanca's antidote 3...d5, the quiet 3...d3 declination, the developing 3...Nf6 declination, the Lindehn Variation with 4...Nf6, and the modern Sörensen treatment with 4.Nxc3.

White's complete intermediate repertoire in the Giuoco Piano (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3). Seven drills cover the Møller Attack with 7.Nc3, the modern 7.Bd2 exchange line, Steinitz's 5...Bb6 retreat, the Greco Gambit 6.e5, the solid 4...d6 Semi-Italian, the Hungarian Defense with 3...Be7, and the Italian Fianchetto 3...g6.

White's complete intermediate repertoire in the Max Lange Attack (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O Nf6 5.d4 exd4 6.e5). Seven drills cover the classical 9...Qd5 main line, the 10...Qa5 queen retreat, Marshall's 9...Qxf6, the Krause 9...g6, Anderssen's 6...Ng4 sacrificial defence, the 7...gxf6 decline, and Black's 5...d6 modern decline.

Black's complete intermediate repertoire in the Owen Defense (1.e4 b6). Seven drills cover the classical 3.Bd3 e6 mainline with the ...c5 / ...d5 French hybrid, the 3.Nc3 pin setup, the quiet 3.Nf3 Hedgehog, the sharp 3.f3 Maróczy, the 3.Bd3 Nf6 Hippo hybrid, the 3.c4 English-style centre with opposite-side castling, and the pure 3.Bd3 g6 Hippopotamus.

Black's complete intermediate repertoire in the St. George Defense (1.e4 a6). Seven drills cover Miles' classical 3.Bd3 mainline, the quiet 3.Nf3 Hedgehog, the 3.c4 pawn-grab, the 2.Nf3 French / Sicilian hybrid, the 2.c4 Hippopotamus double-fianchetto, the 2...e6 French Advance transposition, and the 2.Nc3 sideline.

Black's complete intermediate repertoire in the Chigorin Defense (1.d4 d5 2.c4 Nc6). Seven drills cover the 3.Nc3 dxc4 main line with ...Bg4 and ...Bxc3, the 3.Nf3 Bg4 Janowski trade, the 3.cxd5 Qxd5 central exchange, the 3.Nc3 Nf6 symmetrical sideline, the 3.e3 e5 Tartakower counter, the sharp 3.Nc3 e5 piece sacrifice, and the quiet 3.cxd5 Qxd5 4.e3 system.

Black's complete intermediate repertoire in the Vienna Variation of the Queen's Gambit Declined (1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 dxc4 5.e4 Bb4). Seven drills cover the 6.Bxc4 main line with ...c5, the 6.Bg5 pin counter, the 6.e5 push, the 7.Bxe6 sacrifice, the quiet 6...Nbd7 system, the 6.Qa4+ check sideline, and the modern 7.e5 push.

White's complete intermediate repertoire in the Exchange Variation of the Queen's Gambit Declined (1.d4 d5 2.c4 e6 3.cxd5 exd5). Seven drills cover the classical minority attack, the Bxf6 trade, Karpov's opposite-side castling kingside storm, the flexible Bf4 Pillsbury setup, the 4.Nf3 Bf4 move-order, the 4.Nf3 Bb4 pin treatment, and the mainline ...Bd6 trade with Rab1 plan.

Black's complete intermediate repertoire in the Elephant Gambit (1.e4 e5 2.Nf3 d5). Seven drills cover the modern 3.exd5 e4 main line, the sound 3.Nxe5 Qe7 defence, the aggressive Maroczy 3.Nxe5 Bd6 double-gambit, the Paulsen 3.exd5 e4 4.Qe2 Be7, the Paulsen Counter-Gambit ...Bd6, the 3.d4 centre exchange, and the 3.Nc3 quiet sideline.

Black's complete intermediate repertoire in the Latvian Gambit (1.e4 e5 2.Nf3 f5!?). Seven drills cover the Leonhardt main line 3.Nxe5 Qf6 4.Nc4, the wild Svedenborg 3.Bc4 fxe4 4.Nxe5 Qg5, the Mlotkowski 3.exf5 e4 with ...Qe7, the Behting 3.Nxe5 Nc6, the Polerio 3.Nc3 fxe4, the 3.d4 centre counter, and the Diepstraten 3.Bc4 fxe4 4.Nxe5 d5.

White's complete intermediate repertoire in the Barry Attack (1.d4 Nf6 2.Nf3 g6 3.Nc3 d5 4.Bf4). Seven drills cover the ...Bg7 mainline slow plan, the ...c5 break, the immediate 4...c5, the ...c6 setup with Ne5/Bxg7/f4-g4, the ...Nh5 bishop hunt, the ...b6 queenside fianchetto met with h4-h5, and the 4...e6 stonewall try.

Pin the c3-knight with ...Bb4, double White's pawns, and play for control of the dark squares. The most respected reply to 1.d4 at every level.

Fianchetto the queen's bishop with ...b6 and ...Bb7 to challenge White's long diagonal. The bulletproof reply when White avoids the Nimzo with 3.Nf3.

A hypermodern weapon against 1.e4: let White build a big center, then counter-strike with ...c5, ...e5 or ...b5 from a flexible King's Indian-like setup.

1.e4 c5 2.c3 — sidestep the entire Open Sicilian. Build a big center with d4, develop naturally, and steer the game into structures where White's space and easy development pay off.

1.e4 c5 2.Nc3 followed by f4 — the British attacking weapon vs the Sicilian. Build a kingside pawn storm with Bb5, Nf3, O-O, Qe1-h4 and hunt Black's king.

1.e4 c5 2.d4 cxd4 3.c3 — sacrifice a pawn for a crushing lead in development. The Morra is the fastest, sharpest way to beat the Sicilian without memorizing 30 moves of theory.

A solid, system-based opening for White built on d4, Nf3, e3, Bd3, c3, Nbd2, O-O — aiming for the freeing e4 break with a ready-made kingside attack.

A flexible 1.d4 system with 2.Nf3 and 3.Bg5, pinning Black's knight and aiming for a quick e4 or kingside attack. Easy to learn, hard to refute.

A rock-solid system for White built on the d4–e3–f4 pawn wall, with Bd3 aimed at h7, Nf3–e5 dominating the center, and a kingside pawn storm to finish.

An aggressive 1.d4 system: Nc3 and Bg5 pin the f6 knight, then White either trades on f6 to fracture Black's pawns or castles long for a kingside pawn storm. A theory-light cousin of the Trompowsky.

Sacrifice the e5-pawn after 1.d4 Nf6 2.c4 e5 to drag White out of theory, win the pawn back with active piece play, and dominate the dark squares.

After 1.d4 Nf6 2.c4 c5 3.d5 b5 sacrifice a wing pawn for lasting queenside pressure: open a- and b-files, a powerful fianchettoed bishop and a strategic stranglehold that even strong club players struggle to neutralize.

After 1.e4 Nf6 provoke White's pawns forward, then dismantle the overextended center with timely strikes (...d6, ...dxe5, ...Bg4) and active piece play. Hypermodern strategy for Black against 1.e4.

White's complete advanced repertoire with the King's Indian Attack. Ten drills cover the French KIA mainline with the e5 wedge and Nf1-h2-g4 attack, the Sicilian ...e6 Botvinnik c3-d4, the Caro-Kann ...e5 b3/Bb2 plan, the pure symmetric KIA with Nc4-e3-h4, the Dutch ...f5, the Sicilian ...d6 with c3-d4, the Reversed Tarrasch ...c5, the King's Indian symmetric with f4 break, the French Yugoslav with Bh3, and the Slav-like ...c6 ...Bf5.

Black's complete repertoire in the Ruy Lopez Zaitsev Variation (9...Bb7). Ten drills cover the classical mainline 12.a4 h6, Karpov's 12.a3 knight regrouping, the closed 12.d5, Romanishin's 11.c4, the Anti-Zaitsev 10.d3, the 11.Ng5 repetition try, the early 11.a4 flank, 12.Nf1 with the Chigorin-style ...Na5/Nc4, 12.Bc2 with a kingside fianchetto, and the modern 12.a4 exd4 break.

Black's complete repertoire in the Ruy Lopez Breyer (9...Nb8). Ten drills cover the main 14.Ng3 g6 with both ...c5 and ...Bg7 plans, the closed 14.d5 c6, Karpov's 12.a4, Kasparov's 14.Nh2 attacking scheme, the rare 11.Nh4, slow 10.a3 and 10.d3, the double-fianchetto 12.b3, and the early 10.Bg5 pin.

Black's complete answer to the Gligoric System (6.Be2 e5 7.Be3) in the King's Indian. Ten drills cover the main 7...Ng4 8.Bg5 f6, the Petrosian 8...h6, the Modern 7...exd4, the flexible 7...Na6, the Smyslov 7...c6, the prophylactic 7...h6, the Old Indian 7...Nbd7, the rare 7...Qe7, the classical 7...Nc6 knight tour, and the Kaidanov 7...exd4 ...c6.

Black's complete answer to the Four Pawns Attack (5.f4) in the King's Indian. Ten drills cover the Modern main 7.d5 e6 8.Be2, the 8.dxe6 fxe6 main, the direct 5...c5 Benoni, the Florentine 6...Na6, the 7.dxc5 Qa5 recovery, the sharp Six Pawns 7...b5 gambit, the Mikenas 6...Nbd7, the 6...Nc6 counter-strike, the Czech 5...c6 setup, and the 6.Be2 c5 transposition.

A complete top-tier Queen's Indian repertoire for Black: modern Qc2 c5, classical Ba6/Bb7, Petrosian a3 with Kasparov and Benoni branches, fianchetto Karpov and ...Bb4+ hybrid, classical 4.e3, pin 4.Bg5 and Nimzo crossover.

The most theoretical King's Indian system — Black's all-in kingside pawn storm against White's queenside attack. Covers 9.Ne1, 9.Nd2, the Bayonet (9.b4), 9.Bd2 and 9.Re1, plus the Korchnoi anti-Bayonet (...a5) and the older ...Ne8 setup.

A hypermodern reply to 1.d4 where Black invites White to build a big center, then dismantles it with ...d5, ...c5, and pressure from g7.

White's complete advanced repertoire in the Nimzo-English (1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4). Ten drills cover the Qc2 mainline vs ...d5, Qc2 Hedgehog setups, the Fianchetto Variation, the aggressive Mikenas-Carls 3.e4, the anti-Nimzo Nd5, 3...c5 Symmetric, the Queen's Indian transposition 3...b6, the 3...d5 Exchange, and the Saemisch-style 4.a3.

White's complete repertoire in the King's Indian Petrosian System (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5). Ten drills cover the classical 7...a5 8.Bg5 main, the Bareev Rb1 plan, the Stein 7...Nbd7 8.Bg5 h6, the modern 7...Na6, the sidestep 7...Nh5, the central break 7...c6, the ...Ne8 prep, the 7...h6 prophylaxis, the Czech-lock 7...c5, and the waiting 7...Nbd7 8.Bg5 a6.

The complete Sveshnikov repertoire: modern 11.c3, classical 11.Bd3, Karjakin's 11.c4 b4 pawn-sac, the Sveshnikov-Bird 9...Qxf6, 9.Nd5 Be7 with no doubled pawns, plus White's main sidesteps 7.Nd5, 6.Nb3, and 6.Nxc6.

The complete elite Berlin repertoire: the famous Berlin Wall endgame with both the classical Bd7 plan and Kramnik's h5 setup, plus modern Anti-Berlin treatments against 4.d3, 4.Qe2, 4.Re1, and 4.d4 exd4.

The Classical King's Indian survival kit — every White system you actually meet OTHER than Mar del Plata: Petrosian (7.d5), Gligoric (7.Be3), Exchange (7.dxe5), Makogonov (6.h3), Sämisch (5.f3), Four Pawns (5.f4), Averbakh (6.Bg5), Fianchetto (5.g3), Smyslov (5.Bg5) and the Bayonet 9.b4.

The complete London System repertoire — Modern Ne5/f4 attack, anti-KID, anti-QID, ...Bd6 trade, ...Qb6, Jobava 2.Nc3, ...Nh5, ...Bf5 symmetrical, Anti-Benoni and Anti-Dutch — ten drills covering every setup you'll meet at club and tournament level.

Black's most ambitious answer to the Ruy Lopez — grab the e4 pawn with 5...Nxe4 and play for active piece counter-play. Ten drills cover the Karpov 11.Bc2, Classical 9.c3 Be7, the razor-sharp Dilworth 9.c3 Bc5, plus 9.Be3, 9.Qe2 Howell, 9.Nc3 Mikenas, 9.Bg5, 9.a4 and 9.h3.

Black's mainline answer to 6.Bg5 in the Open Sicilian — develop with ...e6 + ...a6 + ...Be7, castle queenside-versus-kingside, and race to attack. Ten drills cover the 9.Be3 main, 9.Bf4 kick, 9.Be3 Be7 slow, Bondarevsky 7...Be7, Smyslov 6...Bd7, 8.f4 early, modern 9...b5 and more.

Black's complete answer to the Sämisch (5.f3) in the King's Indian. Ten drills cover the classical 6...e5 main, the Panno 6...Nc6, the Sämisch Benoni 6...c5, the Byrne 6...a6, the modern 6...b6 and 6...Nbd7, the closed 7.d5 Nh5 plan, the 6...c6 setup, the early 5...c5 Benoni, and the 6...e5 + Nd4 line.

Black's complete answer to the Averbakh System (5.Be2 O-O 6.Bg5) in the King's Indian. Ten drills cover the Main 7.d5 e6 8.Qd2, the 7.d5 h6 8.Bf4 e6 line, the modern 7.d5 a6 plan, the 7.dxc5 Qa5 recovery, the 6...Na6 setup, the 6...Nbd7 plan, the 6...h6 + ...e5 break, the sharp 7.d5 b5 gambit, the Czech 6...c6 + ...e5, and the 6...Nc6 7.d5 Nb8 retreat.

White's complete Botvinnik / Closed English repertoire (c4, Nc3, g3, Bg2, d3, e4, Nge2). Ten drills cover the reversed Dragon, the ...e6 Anti-King's Indian, the ...Bg7 King's Indian setup, the Symmetric ...c5, the open Reversed Sicilian ...e5 ...Nf6 ...d5, the Slav-like ...c6 ...d5, the Anti-Dutch ...f5, the modern ...d6 King's Indian, the Hedgehog ...e6 ...b6, and the Botvinnik mirror with ...Nc6 + ...e5.

White's complete repertoire against the Symmetrical English (1.c4 c5). Ten drills cover the Pure Symmetrical double fianchetto, the Hedgehog ...e6 ...b6, the Maroczy Bind, the Rubinstein 5.e3, the central ...d5 trade, the ...b6 Queen's-Indian-style setup, the Mikenas 3.e4, the Four Knights ...Qb6, the ...Nge7 mirror, and the Anti-Benoni ...g6.

White's complete repertoire against the English Four Knights (1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6). Ten drills cover the 4.g3 main line vs ...Bb4, the Reversed Dragon ...d5, the Reversed Italian ...Bc5, the Bradley Beach 5.Nd5, the open 4.d4 exd4, the venomous 4.a3, the 4.e4 Vienna transposition, the quiet 4.e3 Bb4, the Korchnoi 6...Re8 line, and the early 5...Bxc3 trade.

White's complete repertoire in the English Reversed Sicilian (1.c4 e5). Ten drills cover the Bremen System (2.g3 d5 and 2.g3 Nc6), the Closed Reversed Sicilian, the Romanishin 3...e4 lunge, the Keres-Parma 2...d6, the Reversed Grand Prix 2...f5, the Smyslov 3...Bb4, the Reversed Rossolimo 3...g6, the Reversed Italian 2...Bc5, and the Reversed Sveshnikov 4...d6 Botvinnik mirror.

Black's complete repertoire in the Orthodox King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5). Ten drills cover the Bayonet 9.b4 with both ...Nh5 and ...a5 plans, the quiet 9.Nd2 ...c5, the Bd2/Be3/Be3 9th-move alternatives, the Makogonov 6.h3, the early exchange 7.dxe5, the simplified 7...exd4, the Old-Indian-style 7...Nbd7, and the 7.Be3 Ng4 chase.

Black's complete repertoire in the Ruy Lopez Chigorin Variation (9...Na5 10.Bc2 c5 11.d4 Qc7). Ten drills cover the classical 12.Nbd2 cxd4, the old 13.d5 main line, the Karpov 12.d5 fianchetto plan, Yates' 12.a4, Smyslov's ...Bd7, Keres' ...Re8, Bondarevsky's 11...Nd7, the closed 12.d5 c4, Petrosian's ...Bb7 with ...Nc4, and the quiet 12.b3 setup.

White's complete advanced repertoire with the Réti Opening (1.Nf3). Ten drills cover the modern mainline 2...e6 with the timed d4 break, the Lasker 2...d4 3.b4 gambit, the quiet 2...d4 3.g3, Réti Accepted with Smyslov's 3.Na3, the Slav-like 2...c6 3.b3, the Catalan transposition after 4...dxc4, the Symmetrical 2.c4 c5, the Nimzo-Réti 3.Nc3 Bb4, the Anti-Indian 1...c5, and the King's Indian setup with a queenside b4 push.

White's complete advanced repertoire with Larsen's Opening (1.b3). Ten drills cover the Bb5 pin mainline vs 1...e5, the Réti hybrid vs 1...d5, double fianchetto vs ...Nf6 with f4 break, queen-lift attack vs 1...c5, Closed centre with Nge2-g3, Tarrasch-style ...d5 ...c5, double fianchetto vs ...g6 King's Indian, the Dutch 1...f5, Bb5+ trade vs 1...e6, and the Symmetrical ...c5 ...g6 with d4 break.

Black's complete advanced repertoire in the Poisoned Pawn Najdorf (5...a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 Qxb2). Ten drills cover the 10.f5 Nc6 mainline, the 9.Nb3 anti-sacrifice, the 8.Nb3 sidestep, 8.Qd3, 8.a3, the 10.e5 bypass, 10.Bxf6 trade, the 10...Be7 alternative, the 11.Be2 slow build, and the solid 8...Be7 decline.

Black's complete advanced repertoire in the Boleslavsky Variation (1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5). Ten drills cover the 7.Nb3 Be7 mainline, 9.Re1, 7...Be6, 7...a5, 7.Nf3, 7.Nf5 d5 counter-strike, 7.Nde2, the English Attack with f3, the f4 kingside push, and the 9.Bg5 pin.

Black's complete advanced repertoire in the Polugaevsky Variation (1.e4 c5 ... 6.Bg5 e6 7.f4 b5). Ten drills cover the 10.exf6 Qe5+ mainline, the 9...Nfd7 sidestep, the 8.Bxf6 trade, 11.Bd2, 8.a3, Tal's 8.Qf3, 9.Qe2, 8.e5 Bb7, 10.Qe2, and the solid 7...Be7 decline.

A deep dive into the Nimzo-Indian for Black — the Rubinstein, Classical 4.Qc2, Sämisch, Leningrad, Kasparov 4.Nf3 and Shirov-Kasparov 4.f3 systems all drilled to move 20.

The full White-side Spanish: ten branches from 3…a6 — Closed Chigorin / Breyer / Zaitsev, Marshall, Open, Exchange, Steinitz Deferred, Arkhangelsk, Worrall and Centre Attack — each drilled twenty book moves deep.

Frank Marshall's 8...d5 pawn sacrifice and the full anti-Marshall survival kit — ten drills covering the main 17.Nd2 attack, classical 15.Be3 lines, the old Spassky 15.Qf3 endgame, and every modern White anti-Marshall (8.h3, 8.a4, 8.d3, 8.d4 and the early 6.d3 move-order).

The complete Black-side Najdorf: ten branches from 5...a6 — English Attack (vs ...e5 and vs ...e6), 6.Bg5 main, the Opocensky 6.Be2, Fischer-Sozin 6.Bc4, Adams 6.h3, Fianchetto 6.g3, Amsterdam 6.f4, Anti-Najdorf 6.a4 and the quiet 6.Be2/Scheveningen transposition — each drilled twenty book moves deep.

Black fianchettoes the king's bishop and slugs it out with White's Yugoslav Attack — opposite-side castling, race to the king.

The Closed Ruy Lopez — the deepest, richest opening in chess. Master the Chigorin, Breyer, Zaitsev, Smyslov, Karpov, Anti-Marshall, Marshall, Worrall, and Center Attack, all from White's side.