Queen's Gambit Declined - Semi-Tarrasch - San Sebastian variation
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Qa5
White advances the queen's pawn to d4. Black plays the queen's pawn to d5. White advances the c-pawn to c4.
Black moves the king's pawn to e6. White develops the knight to c3. Black develops the knight to f6.
White moves the knight to f3. Black advances the c-pawn to c5. White captures on d5 with the c-pawn.
Black captures with the knight on d5. White moves the king's pawn to e4. Black captures with the knight on c3.
White captures on c3 with the b-pawn. Black captures on d4 with the c-pawn. White captures on d4 with the c-pawn.
Black develops the dark-squared bishop to b4, giving check. White develops the dark-squared bishop to d2. Black deploys the queen to a5.