Attacking Chess : Part 1 - Niranjan

Hello Chess-mates!
Let us have a look at a successful attack launched by Hungarian Grandmaster & by far the strongest female chess player in the history - Judith Polgar
W: Van Wely
B : Judith Polgar
Hoogoveen, 1997
1. c4 c5 2. Nc3 Nc6 3. e3 Nf6 4. d4 d5 5. dxc5?! I am not sure about the correctness of this move. It allows black to capture on c5 with the bishop without losing a tempo. 5...e6 6. a3 Bxc5
Let us have a look at a successful attack launched by Hungarian Grandmaster & by far the strongest female chess player in the history - Judith Polgar
W: Van Wely
B : Judith Polgar
Hoogoveen, 1997
1. c4 c5 2. Nc3 Nc6 3. e3 Nf6 4. d4 d5 5. dxc5?! I am not sure about the correctness of this move. It allows black to capture on c5 with the bishop without losing a tempo. 5...e6 6. a3 Bxc5