1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... b7b6 Durarbayli decided to defend with the Queen's Indian Defense, a solid and flexible choice for this important match. 4. g2g3  4... c8a6 This is considered to be the main line of the 4.g3 variation. White has many ways to protect the c-pawn, and Pragg goes for the classical one. 5. b2b3 