Learn the Philidor Defense

C41 · a repertoire for black · 8 chapters · 50 annotated lines

"Solid as oak, sharper than it looks"

The Philidor Defense (1.e4 e5 2.Nf3 d6) is the classical way to hold the e5 strongpoint without memorizing mountains of Ruy Lopez or Italian theory. This course teaches the modern Antoshin treatment: when White plays 3.d4, Black calmly trades with 3...exd4 and builds an unbreakable little fortress with ...Nf6, ...Be7, and ...O-O. There are no weaknesses to attack, every piece has a natural home, and the thematic breaks (...d5 and ...c5) are always in the air. Along the way you'll learn to punish every early lunge White throws at the position — from the Ng5 cheapshot to the c3 gambit.

What's inside

• Chapter 1: The Main Line — 3.d4 exd4
  Lines: 4.Nxd4 — The Antoshin Setup, 4.Qxd4 — Punish the Queen Grab, 4.c3 — Decline the Gambit's Terms
• Chapter 2: White's Bishop Attack — 3.Bc4
  Lines: The Fork Trick: 7...Nxe4!, The Slow Squeeze: 4.d3, 4.Ng5?? — The Cheapshot Refuted, 5.Qxd4 — The Queen Grab, Bc4 Edition, 4.c3 — The Big-Center Plan
• Chapter 3: Early Sidelines
  Lines: 3.Nc3 — The Quiet Knight, 3.d4 exd4 4.Bc4 — The Delayed Recapture, 4.Bc4 Nf6 5.e5 — The Premature Push, 5.Bxf7+? — The Unsound Sacrifice, 5.O-O O-O 6.d4 — The Fork Trick, 3.Nc3 Edition, 5.O-O O-O 6.h3 — The Waiting Move
• Chapter 4: The Antoshin Tabiya — White's Other Setups
  Lines: 6.g3 — The Fianchetto Setup, 6.Bc4 — The Fork Trick, Greedy Version, 8.Re1 — The Ruy Lopez Impression, 9.a4 — Meeting the Queenside Clamp, 6.Bg5? — The Pin That Drops a Pawn
• Chapter 5: When White Attacks — Storms and Races
  Lines: 6.Bf4 & Long Castling — Win the Race, 7.g4 — The Caveman Lunge, 8.f4 — Punishing the Space Grab
• Chapter 6: The 3.d4 Move-Order Tricks
  Lines: 5.Bc4 Nxe4! — Meeting the Qh5 Raid, 6.Qe2 — The Sober Try, 5.Bc4 — The Two-Pawn Danish, 8.e5 — The Central Break Backfires, 6.Bxf7+ — The Desperado Check, 4.Ng5 — The Cheapshot, d4 Edition
• Chapter 7: The Queen Recapture — Going Deeper
  Lines: 5.Qd3 — The Ambitious Sidestep, 6.Qc4 — The Queen Stays Out, 5.Qd1 — The Shy Retreat, 5.Qe3 — The Sidestep With Ideas, 5.Qa4 — The Pin-Flavored Retreat, 7.O-O — Castling Before Nc3, 8.Bg5 — The Pin That Drops a Pawn
• Chapter 8: The Quiet Builds — c3, d3 and the KIA
  Lines: 3.c3 — The Center That Costs a Pawn, The King's Indian Attack — Same Furniture

Free sample: the main line, move by move

• 1. e4 — 1.e4 — White grabs the center.
• 1... e5 — Meet the classic with the classic. Black stakes an equal claim in the center — and unlike many 1...e5 lines, the Philidor keeps the theory light.
• 2. Nf3 — White attacks the e5 pawn.
• 2... d6 — The Philidor! Defend e5 with a pawn instead of blocking the c-pawn with 2...Nc6. Philidor himself said pawns are the soul of chess — this move keeps the pawn chain flexible and prepares ...Nf6 and ...Be7 with a compact, unbreakable setup.
• 3. d4 — The critical test — White strikes at e5 immediately.
• 3... exd4 — Trade! This is the modern Antoshin approach: instead of defending e5 forever (which invites tactical problems), Black swaps it off and relies on a solid, weakness-free position. Simple to learn, hard to attack.
• 4. Nxd4 — The natural recapture, centralizing the knight.
• 4... Nf6 — Develop and attack e4. Black's plan is refreshingly simple: knight to f6, bishop to e7, castle — the same three moves against almost anything White tries.
• 5. Nc3 — White defends e4 and develops.
• 5... Be7 — The modest bishop is the right bishop. On e7 it guards the kingside, supports a later ...Bf8 regroup, and never becomes a target. Ambitious squares like c5 would just get hit by White's pieces.
• 6. Be2 — White develops calmly.
• 6... O-O — Castle — the king is safe and the rook is ready for the e-file. Black's opening is already a success: every piece has a home and there is not a single weakness in the camp.
• 7. O-O — White castles too.
• 7... Re8 — The signature Philidor move. The rook takes the e-file, pressuring e4 and preparing the elegant regroup ...Bf8 — after which the rook breathes down the open file and the bishop defends the king from home.
• 8. Bf3 — White reinforces e4 with the bishop.
• 8... c6 — The all-purpose pawn move: it controls d5, opens c7 for the queen, and prepares ...d5 or queenside expansion with ...b5 later. In the Philidor, ...c6 is almost always right.
• 9. h3 — White makes luft and takes g4 from Black's pieces.
• 9... Nbd7 — The knight develops behind the pawn chain, eyeing the dream squares e5 and c5. Notice how Black's pieces coordinate — nothing blocks anything.
• 10. Re1 — White contests the e-file.
• 10... Bf8 — The famous regroup, straight from Ruy Lopez strategy. The bishop tucks in behind the rook: the e8 rook now hits e4 directly, the bishop shields the king, and g7-g6 with ...Bg7 is available if Black wants the long diagonal.
• 11. Bf4 — White develops the last minor piece, prodding d6.
• 11... Ne5 — The payoff! The knight lands on e5 — attacked by the bishop but firmly defended by the d6 pawn. It attacks the f3 bishop and radiates influence. Black has finished development with complete equality and the easier position to play.

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