And Niemann chooses a rare continuation in order to avoid the Azeri's heavy preparation.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... f6e4 Definitely not a surprise by Mamedyarov. The Open Ruy Lopez was his bread and butter long before he reached Niemann's age. 6. d2d4  6... b7b5  7. a4b3  7... d7d5  8. d4e5  8... c8e6  9. b1d2  9... e4c5 