Saint Louis
U dvanaestom kolu Niemann je postigao treću uzastopnu pobjedu pa se sa 6,5 poena nalazi na diobi od petog do devetog mjesta. Caruana je remizirao sa Shanklandom i sa 8 poena nalazi se pola poena u vođstvu ispred Robsona. Liang i Dominguez dijele3-4 mjesto sa 7 poena.
Ipak pretposlednje kolo je obilježilo Sevianovo čudno ponašanje. Kako bi rekao Šojić: „Zanimljivo društvance!“

| Rezultati 12. kola (18.10.2022) | ||||||
| Liang, Awonder | – Swiercz, Dariusz | 1-0 | 105 | A50 | Queen’s Indian (without e7-e6) | |
| Xiong, Jeffery | – Dominguez Perez, Leinier | ½-½ | 38 | D20 | QGA | |
| Sevian, Samuel | – Niemann, Hans Moke | 0-1 | 78 | D41 | Semi-Tarrasch Defence | |
| Shankland, Sam | – Caruana, Fabiano | ½-½ | 39 | A30 | English Symmetrical | |
| Aronian, Levon | – Moradiabadi, Elshan | 1-0 | 42 | B12 | Caro Kann Advanced | |
| Lenderman, Aleksandr | – So, Wesley | 0-1 | 40 | E04 | Catalan | |
| Yoo, Christopher Woojin | – Robson, Ray | ½-½ | 34 | C67 | Ruy Lopez Berlin |
Stanje posle 12. kola
| 1. | Caruana, Fabiano | g | USA | 2763 | 8 |
| 2. | Robson, Ray | g | USA | 2690 | 7½ |
| 3. | Liang, Awonder | g | USA | 2608 | 7 |
| 4. | Dominguez Perez, Leinier | g | USA | 2747 | 7 |
| 5. | Xiong, Jeffery | g | USA | 2690 | 6½ |
| 6. | So, Wesley | g | USA | 2774 | 6½ |
| 7. | Sevian, Samuel | g | USA | 2684 | 6½ |
| 8. | Shankland, Sam | g | USA | 2712 | 6½ |
| 9. | Niemann, Hans Moke | g | USA | 2699 | 6½ |
| 10. | Swiercz, Dariusz | g | USA | 2652 | 5½ |
| 11. | Aronian, Levon | g | USA | 2755 | 5½ |
| 12. | Lenderman, Aleksandr | g | USA | 2535 | 4½ |
| 13. | Yoo, Christopher Woojin | g | USA | 2563 | 4½ |
| 14. | Moradiabadi, Elshan | g | USA | 2534 | 2 |
Sevian,Samuel (2684) – Niemann,Hans Moke (2699) [D41]
ch-USA 2022 Saint Louis USA (12), 18.10.2022
1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c5 5.cxd5 cxd4 6.Qxd4 exd5 7.e4 dxe4 8.Qxd8+ Kxd8 9.Ng5 Be6 10.a3 Nbd7 11.Bf4 Rc8 12.g3 Bb3 13.Bg2 Nh5 14.Be3 f5 15.g4

15…f4 16.Bd4 f3 17.gxh5 fxg2 18.Rg1 Nf6 19.Rxg2 Bc5 20.Rd1

20…Bxd1 21.Ne6+ Ke7 22.Nxc5 Bg4 23.N5xe4 Nxe4 24.Rxg4 Nxc3 25.Rxg7+ Kd6 26.Bxc3 Rhe8+ 27.Kf1 Rc7 28.Rg4 Rf7 29.a4 b6 30.h6 Re3 31.Rd4+ Ke6 32.a5 Ref3 33.Rd2 b5 34.Bd4 Rd7 35.Kg2 Rf5 36.Re2+ Kd5 37.Bg7 Kc4 38.Re4+ Kb3 39.Re8 Rdf7 40.Rh8 Rg5+ 41.Kh3 b4 42.Kh4 Rg6 43.Rxh7 Rxh6+ 44.Rxh6 Rxg7 45.f4 Kxb2 46.f5 b3 47.f6 Rg2 48.h3 Ka2 49.Rh7 b2 50.Rb7 Rg6 51.f7 Rf6 52.Kg5 Rxf7 53.Rxf7 b1Q 54.h4 Qg1+ 55.Kh5 Kb3 56.a6 Kc4 57.Rg7 Qc5+ 58.Rg5 Qe7 59.Rf5 Kd4 60.Kg4 Qe6 61.Kg5 Ke4 62.Rf6 Qe7 63.Kg6 Ke5 64.Rf5+ Ke6 65.Rf4 Qe8+ 66.Kg5 Qg8+ 67.Kh5 Ke5 68.Rf1 Qd5 69.Rf8 Qd1+ 70.Kg5 Qd2+ 71.Kh5 Qd7 72.Rf1 Qb5 73.Rf8 Qxa6 74.Kg5 Qe6 75.Rf1 Qg8+ 76.Kh6 Qh8+ 77.Kg5 Qd8+ 78.Kh5 a5

0–1
Zanimljivo je ponašanje Seviana koji je uzeo Niemannovog kralja vrtio ga neko vrijeme, i na kraju je kralju otkinuo glavu što je izazvalo smijeh i čuđenje komentatora. Caruana je prokomentarisao: „Nepoštovanje je došlo do svog vrhunca. Sevian je otkinuo glavu Niemannovom kralju“.
Lenderman,A (2535) – So,W (2774) [E04]
ch-USA 2022 Saint Louis USA (12), 18.10.2022
1.d4 d5 2.Nf3 Nf6 3.c4 e6 4.g3 dxc4 5.Bg2 c5 6.0–0 Nc6 7.Ne5 Bd7 8.Nd2 cxd4 9.Ndxc4 Be7 10.Qb3 Qc7 11.Nxc6 Bxc6 12.Bf4 Qd8 13.Bxc6+ bxc6 14.Ne5 c5 15.Qa4+ Kf8 16.e3 Qe8 17.Qa6 Nd5 18.exd4 cxd4 19.Rac1

19…g5 20.Bd2 Kg7 21.Qd3 Rc8 22.Qxd4 Rxc1 23.Bxc1 Bf6 24.Re1 Qe7 25.h4 h6 26.hxg5 hxg5 27.Bd2 Qb7 28.Re4 Ne7 29.Bc3 Ng6 30.f3 Rc8 31.f4 gxf4 32.gxf4 Bxe5 33.fxe5 Rh8 34.Qe3 Rh5 35.a4 Qd5 36.Qd4 Qa8 37.Qe3

37…Qh8 38.Kf1 Rh1+ 39.Ke2 Qh5+ 40.Kd3 Rh3 0–1
Aronian,L (2755) – Moradiabadi,E (2534) [B12]
ch-USA 2022 Saint Louis USA (12), 18.10.2022
1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Be2 Ne7 6.Nbd2 h6 7.0–0 Nd7 8.c3 Qc7 9.Re1 g5 10.Nf1 Bg6 11.Ng3 c5 12.h3 cxd4 13.cxd4 Qc2 14.Qxc2 Bxc2 15.Bd2 Nc6 16.Bb5 Bg6 17.Rac1 Rc8 18.Re3 Be7 19.Rb3 Nb6 20.a4 0–0 21.Bxc6 bxc6 22.a5 Nc4 23.Rb7 Rfe8 24.Rxa7 Ra8 25.Rxa8 Rxa8 26.Bc3 Kf8 27.Nd2 Ke8 28.Nxc4 dxc4 29.Nf1 c5 30.Ra1 cxd4 31.Bxd4 Bd3 32.Ne3 Bd8 33.Bc3 Bb6 34.Ng4 h5 35.Nf6+ Kd8 36.Rd1 Bc5

37.b3 Kc8 38.bxc4 Bxc4 39.Bd2 Ba3 40.Rb1 h4 41.Ne4 Bd3 42.Rb3 1–0
Liang,Awonder (2608) – Swiercz,D (2652) [A50]
ch-USA 2022 Saint Louis USA (12), 18.10.2022
1.d4 Nf6 2.c4 c6 3.Nc3 d5 4.cxd5 cxd5 5.Bf4 Nc6 6.e3 Bf5 7.Qb3 Na5 8.Qa4+ Bd7 9.Qc2 e6 10.Nf3 Rc8 11.Bd3 Bb4 12.0–0 a6 13.Rac1 Bxc3 14.bxc3 Bb5 15.Bxb5+ axb5 16.Qb1 Qb6 17.Be5 Nc4 18.Bxf6 gxf6 19.e4 dxe4 20.Qxe4 Qc6 21.Qf4 Ke7 22.Rfe1 Qd5 23.g3 h5 24.Nh4 Nd6 25.Ng2 Ra8 26.Ne3 Qe4 27.Qxe4 Nxe4 28.f3 Ng5 29.Re2 Nxf3+ 30.Kg2 Ng5 31.Nd5+ Kf8 32.Nxf6 Kg7 33.Rf1 Rh6 34.Ref2 h4 35.gxh4 Rxh4 36.Kh1 Rh6 37.Nd7 f5 38.Rg2 Rh5

39.d5 Kf7 40.Nc5 b6 41.Nd3 Kf6 42.Nf4 Rh7 43.dxe6 Rd8 44.e7 Rxe7 45.Nh5+ Kg6 46.Rfg1 Kxh5 47.Rxg5+ Kh4 48.Rxf5 Rd2 49.Rf8 Re5 50.Rh8+ Rh5 51.Rxh5+ Kxh5 52.Rb1 Rd5 53.Kg2 Kg4 54.Kf2 Rc5 55.Rb3 Kf5 56.Ke3 Ke6 57.h4 Rc4 58.Kd3 Rxh4 59.Rxb5 Kd6 60.Rxb6+ Kc5 61.Ra6 Rh3+ 62.Kc2 Kc4 63.Ra4+ Kb5 64.Rg4 Rh1 65.Kb3 Rb1+ 66.Ka3 Kc5 67.Rb4 Rc1 68.Kb2 Rh1 69.a4 Kc6 70.Rb3 Kc5 71.Rb5+ Kc6 72.Rb4 Rg1 73.Rb5 Rh1 74.Rg5 Kb6 75.Kb3 Rb1+ 76.Kc4 Rc1 77.Rg6+ Ka5 78.Rg8 Rh1 79.Ra8+ Kb6 80.Rb8+ Ka5 81.Rb4 Rh4+ 82.Kb3 Rh1 83.Rb5+ Ka6 84.c4 Rb1+ 85.Kc3 Rc1+ 86.Kb4 Rb1+ 87.Kc5 Ra1 88.Rb6+ Ka7 89.Rb4 Rh1 90.Kb5 Kb7 91.a5 Rc1 92.a6+ Ka7 93.c5 Rh1 94.Rd4 Rb1+ 95.Kc6 Rh1 96.Rd8 Rh2 97.Re8 Rc2 98.Kd6 Rd2+ 99.Kc7 Rh2 100.c6 Rh7+ 101.Kd6 Rh6+ 102.Kd7 Rh7+ 103.Re7 Rh1 104.c7 Rd1+ 105.Ke8

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