Praggnanandhaa follows the aforementioned principle and decides to castle.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... g8e7 This opening choice probably came as a surprise to Lagarde. 4. b1c3 The third most popular move and one with a good reputation. 4.0-0, 4.c3 and 4.d4 are also usually played. 4... e7g6  5. d2d4  5... c6d4  6. f3d4  6... e5d4  7. d1d4  7... c7c6  8. b5e2  8... d8b6 This position has occurred in many games of strong GMs. 9. d4d3  9... f8e7  10. f2f4 A new move and probably a result of over-the-board inspiration.