context: 1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... c7c6  5. c1g5  5... b8d7  6. e2e3  6... d8a5 The Cambridge Springs Variation is a very solid choice. 7. c4d5  7... f6d5  8. a1c1 Nowadays more popular than 8.Qd2. 8... d5c3 The main move and a regular choice of Dreev. 9. b2c3  9... f8a3  10. c1c2  10... c6c5 Keymer is, as usual, very well-prepared and handles the opening well. 11. f1d3  11... c5d4  12. e3d4  12... b7b6  13. d3e4  13... a8b8  14. g5f4 