Catalan - closed - Sokolsky variation
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 b6 9. b3 a5 10. Bb2 Ba6
White moves the queen's pawn to d4. Black develops the knight to f6. White plays the c-pawn to c4.
Black moves the king's pawn to e6. White pushes the g-pawn to g3. Black pushes the queen's pawn to d5.
White develops the light-squared bishop to g2. Black develops the dark-squared bishop to e7. White develops the knight to f3.
Black castles kingside. White castles kingside. Black jumps the knight to d7.
White moves the queen to c2. Black plays the c-pawn to c6. White transfers the knight to d2.
Black pushes the b-pawn to b6. White plays the b-pawn to b3. Black pushes the a-pawn to a5.
White moves the dark-squared bishop to b2. Black places the light-squared bishop to a6.