[Event "World Senior USA Women vs. China Women"] [Date "2025.02.18"] [Round "2.3"] [White "Root, Alexey"] [Black "Guo, Jun (or Yun)"] [Result "1/2-1/2"] [Annotator "aroot"] [Variant "Standard"] [ECO "A41"] [Opening "Queen's Pawn Game"] [StudyName "2025 FIDE World Senior Team Championships"] [ChapterName "Root, Alexey - Guo, Jun (or Yun)"] [ChapterURL "https://lichess.org/study/lbyDv1vS/mpBUGOcG"] [Orientation "white"] { On the website for the 2025 World Senior Team Chess Championship, my opponent is listed as "Yun Guo." I could not find any games for Yun Guo, when I was preparing to play her. But I did find games for "Jun Guo." I particularly liked how GM Margeir Petursson won against Guo in 2023. I resolved to play like he did. } 1. d4 d6 2. Nf3 Nd7 { Black has varied from how she played two years ago against Petursson. But I thought that I could use some of the same ideas against 2. ... Nd7 as against 2. ... Bg4 followed by 3. ... Nd7. } 3. c4 e5 4. e3 { I remembered Petursson played an early e3 (see reference game). But I had other options in this game. } (4. e4) (4. Nc3) 4... c6 5. Nc3 Ngf6 6. Bd3 Be7 7. O-O O-O 8. Qc2 Re8 9. Rd1 Qc7 10. a3 Nf8 11. h3 { Preventing ... Bc8-g4. } 11... g6 12. b4 Nh5 { Black offered me a draw a while after making her move, while I was thinking of my reply. I don't know if I would have found the best response so I took the draw. We had both used up a little more than 30 minutes. } 1/2-1/2