Four knights - symmetrical - Blake variation
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7 8. Nh4 c6 9. Bc4 d5 10. Bb3 Qd6
White moves the king's pawn to e4. Black moves the king's pawn to e5. White develops the knight to f3.
Black develops the knight to c6. White jumps the knight to c3. Black jumps the knight to f6.
White develops the light-squared bishop to b5. Black develops the dark-squared bishop to b4. White castles kingside.
Black castles kingside. White advances the queen's pawn to d3. Black pushes the queen's pawn to d6.
White moves the dark-squared bishop to g5. Black jumps the knight to e7. White jumps the knight to h4.
Black pushes the c-pawn to c6. White deploys the light-squared bishop to c4. Black advances the queen's pawn to d5.
White moves the light-squared bishop to b3. Black deploys the queen to d6.