1. d2d4  1... d7d5  2. c2c4  2... c7c6  3. c4d5 The Exchange Variation of the Slav Defense is a solid option for White and suits Lazavik's positional style. 3... c6d5  4. b1c3  4... g8f6  5. c1f4  5... b8c6  6. e2e3  6... a7a6 One of Black's most combative options. 7. a1c1  7... c8f5 