Two Knights Defense

3...Nf6 hits White's e4 pawn, the core idea of the Two Knights Defense. You'll have a plan for every main reply.

Two Knights meets 1.e4 with immediate pressure on White's e4 pawn, often grabbing material when White overextends with 4.Ng5 or 4.Nc3. You study master games, including wins by Keymer and Esipenko, and traps that punish common amateur-level mistakes. Each chapter gives you a clear plan against White's main tries, from the quiet 4.d3 setups to the sharp 4.d4 gambits.

What you'll learn

Modern Bishop's Opening (4.d3)

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3

White plays the quiet 4.d3 to defend e4, and you answer with 4...Be7 before castling with 5...O-O. When White follows up with 6.c3, you strike back with 6...d5, and after 7.exd5 Nxd5 your bishop on e7 gets more room to develop. The chapter also covers White's 6.Nc3 and 5.c3 tries, each with its own plan toward active piece play.

Bishop Check Line (6.Bb5+)

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5

White's 4.Ng5 threatens Nxf7, so you hit back with 4...d5 and 5...Na5, attacking the bishop on c4. After 6.Bb5+ c6 7.dxc6 bxc6, you chase the bishop to d3 and later trade for it with 11...Nxd3, picking up the bishop pair against White's isolated and doubled d-pawns. The chapter also covers traps after 8.Ba4 and 8.Qf3, where White can lose material outright.

Italian Variation (4.Nc3)

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Nc3

After 4.Nc3, you grab the pawn with 4...Nxe4 and strike back with 5...d5, winning back the piece when White takes with 6.Bxd5 Qxd5. You pin White's knight with 8...Bg4, and after the common mistake 10.d3, you castle queenside with 10...O-O-O, keeping the pin and the bishop pair.

4.O-O Lines

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.O-O

White's 4.O-O skips c3, letting you grab the pawn with 4...Nxe4. After the common mistake 5.Re1, you defend with 5...d5 and meet 6.Bb5 with 6...Bc5, threatening ...Bxf2+. Following the mistaken 8.Nxd4, you castle with 8...O-O, up a pawn with a strong attack.

Open Variation (4.d4)

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4

White opens with 4.d4 exd4, entering the Scotch Gambit, then pushes you back with 5.e5 d5 6.Bb5. You meet this with 6...Ne4 and 7...Bc5, trading down after 9.Nxc6 bxc6 10.Bxc5 Nxc5 before defending with 11...Rb8 and 12...Qe7. The chapter also covers traps where White's greedy 11.Qxd5 or 12.Qxd5 hands you a piece or more.

What's inside

• 11 traps featured as priority lines, so you learn the tricks that win games first.
• 8 master games played in these lines, linked from the moves where they leave the course.
• 38 puzzles from real games of this opening.

Why this repertoire?

• Built for amateurs. The traps target mistakes White commonly makes between 1600 and 2200.
• Light on memorization. The chapters focus on each tabiya's main try, not a flood of side variations.
• Recurring plans. Hitting White's e4 pawn early, pinning the knight with Bg4, and trading into bishop-pair endings appear across the chapters.
• Understanding over memorizing. Every move comes with a reason, so you can find the right idea even when White strays from the main line.
• Traps that win material. You learn how to punish greedy tries like 6.Bxd5 or 5.Bxf7+ when White falls for them.