Queen's Indian - old main line - 9.Qxc3

White pushes the queen's pawn to d4. Black develops the knight to f6. White plays the c-pawn to c4.

Black plays the king's pawn to e6. White develops the knight to f3. Black moves the b-pawn to b6.

White advances the g-pawn to g3. Black develops the light-squared bishop to b7. White develops the light-squared bishop to g2.

Black moves the dark-squared bishop to e7. White castles kingside. Black castles kingside.

White jumps the knight to c3. Black transfers the knight to e4. White places the queen to c2.

Black captures with the knight on c3. White captures with the queen on c3.