Event: Round 9: Duong, Thanh Nha - Santanna, Paulo
Site: https://lichess.org/broadcast/fide-world-senior-championship-2025--open-50/round-9/iVNZgkxe/Sh5SmtKb
Date: 2025-10-30
White: Duong, Thanh Nha
WhiteTitle: IM
WhiteElo: 2161
Black: Santanna, Paulo
BlackElo: 2013
Result: 1/2-1/2
ECO: A30
Opening: English Opening: Symmetrical Variation
Variant: Standard

1. Nf3 { [%eval 0.1] [%clk 1:30:38] } 1... c5 { [%eval 0.25] [%clk 1:30:52] } 2. c4 { [%eval 0.19] [%clk 1:30:54] } 2... Nc6 { [%eval 0.31] [%clk 1:31:05] } 3. d4 { [%eval 0.1] [%clk 1:31:16] } 3... cxd4 { [%eval 0.16] [%clk 1:31:26] } 4. Nxd4 { [%eval 0.0] [%clk 1:31:40] } 4... Nf6 { [%eval 0.07] [%clk 1:31:22] } 5. Nc3 { [%eval 0.08] [%clk 1:31:03] } 5... Qb6 { [%eval 0.31] [%clk 1:30:48] } 6. Nc2 { [%eval 0.06] [%clk 1:28:50] } 6... e6 { [%eval 0.08] [%clk 1:27:20] } 7. Rb1 { [%eval -0.28] [%clk 1:20:57] } 7... d5 { [%eval 0.0] [%clk 1:24:32] } 8. cxd5 { [%eval -0.03] [%clk 1:19:05] } 8... Nxd5 { [%eval -0.07] [%clk 1:23:41] } 9. Nxd5 { [%eval -0.18] [%clk 1:16:47] } 9... exd5 { [%eval -0.08] [%clk 1:24:06] } 10. e3 { [%eval -0.07] [%clk 0:57:41] } 10... Bf5 { [%eval 0.0] [%clk 0:57:37] } 11. Bd3 { [%eval -0.04] [%clk 0:53:50] } 11... Bxd3 { [%eval -0.09] [%clk 0:56:38] } 12. Qxd3 { [%eval -0.17] [%clk 0:54:15] } 12... Qa5+ { [%eval -0.06] [%clk 0:42:45] } 13. Bd2 { [%eval -0.06] [%clk 0:49:52] } 13... Qxa2 { [%eval -0.11] [%clk 0:41:21] } 14. O-O { [%eval -0.51] [%clk 0:47:20] } 14... Qc4 { [%eval -0.7] [%clk 0:41:47] } 15. Qxc4?! { [%eval -1.79] } { Inaccuracy. Qc3 was best. } { [%clk 0:46:32] } 15... dxc4 { [%eval -1.64] [%clk 0:42:16] } 16. Na3 { [%eval -1.71] [%clk 0:46:51] } 16... Bxa3 { [%eval -1.76] [%clk 0:38:38] } 17. bxa3 { [%eval -1.87] [%clk 0:47:19] } 17... O-O-O { [%eval -1.87] [%clk 0:38:58] } 18. Bc3 { [%eval -1.78] [%clk 0:46:28] } 18... f6 { [%eval -1.63] [%clk 0:37:52] } 19. Rfc1 { [%eval -1.69] [%clk 0:45:09] } 1/2-1/2