[Event "ch-USA Seniors TB 2026"]
[Site "Saint Louis USA"]
[Date "2026.07.24"]
[Round "1"]
[White "Onischuk, Alexander"]
[Black "Akopian, Vladimir"]
[Result "0-1"]
[WhiteElo "2640"]
[BlackElo "2551"]
[ECO "D17"]
[Opening "QGD Slav"]
[Variation "Czech defence"]
[EventDate "2026.07.24"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Nh4 Bd7 7. e4 e6 8.
Bxc4 Nxe4 9. Nxe4 Qxh4 10. Qf3 Bb4+ 11. Kf1 h6 12. Bf4 O-O 13. Be5 f5 14.
Ng3 Rf7 15. Nxf5 Qg5 16. g4 Bf8 17. Qb3 b5 18. Bxe6 Bxe6 19. Qxe6 Nd7 20.
h4 Qd2 21. Kg2 Nxe5 22. dxe5 Qf4 23. f3 h5 24. Rhf1 Rd8 25. Rf2 Rd3 26. Qg6
hxg4 27. Nh6+ Qxh6 28. Qxd3 Bc5 29. Rff1 Qxh4 30. f4 Rd7 31. Qb3+ Kf8 32.
Rad1 Rxd1 33. Rxd1 Qf2+ 34. Kh1 g3 35. Rd8+ Ke7 0-1

[Event "ch-USA Seniors TB 2026"]
[Site "Saint Louis USA"]
[Date "2026.07.24"]
[Round "2"]
[White "Akopian, Vladimir"]
[Black "Onischuk, Alexander"]
[Result "0-1"]
[WhiteElo "2551"]
[BlackElo "2640"]
[ECO "A14"]
[Opening "English"]
[Variation "Neo-Catalan declined"]
[EventDate "2026.07.24"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 d4 6. e3 c5 7. exd4 cxd4 8.
d3 Nc6 9. Re1 O-O 10. a3 a5 11. Bg5 h6 12. Bxf6 Bxf6 13. Nbd2 a4 14. b4
axb3 15. Qxb3 Qa5 16. Reb1 Be7 17. Qd1 Qc7 18. Rb3 e5 19. Ne1 Bd7 20. Qb1
Na5 21. Rb2 Bc6 22. Nc2 f5 23. Nb4 Bg5 24. Nd5 Qd6 25. Nb3 Nxb3 26. Rxb3 b5
27. Qc2 Rac8 28. h4 Bd8 29. Qd2 e4 30. a4 bxc4 31. dxc4 d3 32. a5 Bxd5 33.
cxd5 Qxd5 34. Rbb1 Rc2 35. Qe3 Bxa5 36. g4 Bc3 37. Ra3 Re2 38. Qb6 Bd4 39.
Rxd3 Bxf2+ 40. Qxf2 Qxd3 0-1

[Event "ch-USA Seniors TB 2026"]
[Site "Saint Louis USA"]
[Date "2026.07.24"]
[Round "3"]
[White "Akopian, Vladimir"]
[Black "Onischuk, Alexander"]
[Result "1-0"]
[WhiteElo "2551"]
[BlackElo "2640"]
[ECO "C78"]
[Opening "Ruy Lopez"]
[Variation "Moeller defence"]
[EventDate "2026.07.24"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bc2 d6 8.
a4 Bg4 9. h3 Bxf3 10. Qxf3 b4 11. d3 Rb8 12. Nd2 Na5 13. Qd1 O-O 14. Nb3
Nxb3 15. Bxb3 bxc3 16. bxc3 d5 17. exd5 Nxd5 18. Bd2 Qd6 19. a5 Nf6 20. Bc4
Rb2 21. Bc1 Rbb8 22. Qe2 Rfe8 23. Bg5 h6 24. Bh4 Nd5 25. Qd2 Nf4 26. Bg3 g5
27. Rab1 Rbd8 28. Bxf4 gxf4 29. Qe2 Re7 30. Rbe1 Kh8 31. Qh5 Rg8 32. d4 Rg5
33. Qf3 exd4 34. Rxe7 Qxe7 35. cxd4 Bxd4 36. Rb1 Rxa5 37. Kh2 Kg7 38. Bd3
Rg5 39. h4 Rc5 40. Qg4+ Kf6 41. Qxf4+ 1-0

[Event "ch-USA Seniors TB 2026"]
[Site "Saint Louis USA"]
[Date "2026.07.24"]
[Round "4"]
[White "Onischuk, Alexander"]
[Black "Akopian, Vladimir"]
[Result "0-1"]
[WhiteElo "2640"]
[BlackElo "2551"]
[ECO "E45"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Bronstein (Byrne) variation"]
[EventDate "2026.07.24"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5
8. e4 dxe4 9. Bg5 h6 10. Bxf6 Qxf6 11. Qa4+ c6 12. Nxe4 Qf4 13. Bd3 O-O 14.
O-O b5 15. Qa3 bxc4 16. Bc2 Qc7 17. Rab1 Bc8 18. Qd6 Qxd6 19. Nxd6 Nd7 20.
Be4 Nb6 21. Bxc6 Rb8 22. Rb4 Bd7 23. Bxd7 Nxd7 24. Rxc4 Rb2 25. Rc7 Nb6 26.
Rxa7 Nd5 27. c4 Nc3 28. c5 Ne2+ 29. Kh1 Nxd4 30. a4 Rc2 31. Rc7 f5 32. h4
Ra8 33. Ra1 Rxf2 34. a5 f4 35. a6 f3 36. Ne4 fxg2+ 37. Kg1 Re2 38. Nf2 Rf8
39. a7 Rfxf2 40. a8=Q+ Kh7 41. Rxg7+ Kxg7 42. Qb7+ Kg6 43. Kh2 Nf3+ 44. Kg3
Rf1 0-1

