1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5 In a must-win situation Vachier-Lagrave chooses the most complex opening, the Ruy Lopez. 3... a7a6  4. b5a4  4... d7d6  5. e1g1  5... c8g4 Rapport's choice, on the other hand can be called anything but solid. The Improved Stenitz could not have been expected by him, as the Hungarian GM tries for the first time, at least according to Megabase $1 6. h2h3  6... h7h5  7. d2d4 After some hesitation, White opts for the main line. The pawn is offered in return for the control over the -g5 square. 7... b7b5  8. a4b3  8... c6d4  9. h3g4 Now White can grab the piece as he can block the black queen access towards his king. 9... h5g4 The older line.