Four Knights Game: Complete Repertoire

15. Gambit Transition with 6.Bc4 & 7.O-O (6...O-O 7.O-O d6 8.Nxd4)

When Black seeks solid defense against the Belgrade Gambit, White avoids forcing moves, rapidly deploys the bishop to c4, and castles. With 8.Nxd4, White’s position is a masterpiece of harmony and pressure.

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nd5 Be7 6.Bc4 O-O 7.O-O d6 8.Nxd4

Move by move

  1. 1.e4 – The initial king's pawn push opens diagonal pathways for both the queen and the dark-squared bishop, staking an immediate claim in the center on e4.
  2. 1...e5 – Black’s classical symmetrical reply: occupies central space on e5, prevents further white expansion with e4, and unlocks diagonals for pieces.
  3. 2.Nf3 – Classical development with a direct threat: the knight attacks the undefended e5-pawn while initiating rapid mobilization toward kingside castling.
  4. 2...Nc6 – The most natural and solid defense: the knight protects the e5-pawn, controls the d4 and b4 squares, and develops a minor piece into the fray.
  5. 3.Nc3 – The Three Knights Game: White brings out the second knight, fortifying e4 and preparing to fight for asymmetric central control with a future d4.
  6. 3...Nf6 – The Four Knights Game! Black develops their final knight, counter-attacking e4 and establishing a position of complete and harmonious symmetry.
  7. 4.d4 – The central Scotch push! White immediately disputes the center with d4, opening lines for major pieces and initiating the Belgrade Gambit.
  8. 4...exd4 – Black captures on d4 surrendering their central pawn, opening the e-file and exposing themselves to White’s energetic dynamic threats.
  9. 5.Nd5 – The fearsome Belgrade Gambit! White’s knight lunges aggressively to d5 instead of recapturing on d4, taking aim at the f6 and c7 weak spots.
  10. 5...Be7 – Black plays cautiously, declining the e4-pawn and developing the bishop to e7 to prepare a swift and solid evacuation of their monarch.
  11. 6.Bc4 – Attacking development along the long diagonal: the light-squared bishop aims directly at weak f7, coordinating smoothly with the d5-knight.
  12. 6...O-O – Black scrambles to castle to tuck their king away, but the intense pressure of White’s coordinated minor pieces on the center remains lethal.
  13. 7.O-O – Swift kingside castling: White’s king secures safety and the f1-rook is poised to join central operations along the wide-open e-file.
  14. 7...d6 – Black attempts to pave a path for the c8-bishop with d6, but severe developmental lag and passive pieces condemn their defensive setup.
  15. 8.Nxd4 – Recapturing the gambit pawn: White centralizes the knight on d4, enjoying total mastery over the board and complete strategic harmony.

How to exploit the position

Occupying d5 and developing the bishop along the open diagonal with 6.Bc4

Master tips

Harmony of all four minor pieces

No need to force immediate checkmates: with Bc4, O-O, and Nxd4 all your pieces occupy prime squares while Black remains cramped.

Model games