80th Tata Steel Chess Tournament - Round 7 Games

Carlsen, Magnus-Hou, YifanKarjakin, Sergey-Caruana, FabianoMatlakov, Maxim-Adhiban, B..Anand, Viswanathan-Kramnik, VladimirMamedyarov, Shakhriyar-Wei, YiSo, Wesley-Giri, AnishJones, Gawain C B-Svidler, Peter

ChessBase

Carlsen, Magnus2834–Hou, Yifan26801–0D3580th Tata Steel Masters 20187Wijk aan Zee20.01.2018ChessBase

1.c4 e6 2.c3 d5 3.d4 f6 4.cxd5 xd5 5.e3 5.e4 xc3 6.bxc3 c5 7.b1 e7 8.f3 0-0 9.c4 c7 9...c6 10.0-0 b6 11.d5 a5 12.d3 c4 13.c2 exd5 14.exd5 g4 15.e1 1/2-1/2 (23) Svidler,P (2765)-Wang,H (2709) Riadh 2017 10.e2 a6 11.0-0 b5 12.d3 b7 13.a4 bxa4 14.f4 c8 15.d5 exd5 16.exd5 1-0 (29) Carlsen,M (2832)-So,W (2815) chess.com INT 2017 5...c5 6.d3 D35: Queen's Gambit Declined: Exchange Variation cxd4 7.exd4 LiveBook: 18 Games xc3 8.bxc3 The position is equal. c7 9.d2 d7 10.g4N Find the theoretical novelty and annotate with similar games: Predecessor: 10.f3 b6 11.0-0 b7 12.e1 d6 13.c4 0-0 14.c3 fe8 15.g5 h6 16.f3 ad8 17.b1 e7 18.e2 f6 19.bc1 c8 20.b2 ed8 0-1 (60) Rantanen,Y (2308)-Barbosa,O (2501) Pattaya 2015 10...f6 11.g3 xg3 12.hxg3 d6 13.f3 b6 14.a4 b7 15.a5 e7 16.e2 e4 17.e1 h6 18.c4 f6 19.c3 e4 20.hb1 xd3+ 21.xd3 d7 22.d2 hd8 23.e4 c7 24.b4+ e8 25.f4 ac8! 26.axb6 axb6 27.a7 b8! Hoping for ...Nc6.

Strongly threatening ...Nc6. 28.xc7 xc7 29.d6+ d7 30.xf7 dc8 31.e5+ e8 32.d6 b7! 33.c5 c6! 34.xb6 xb6 35.cxb6=

Endgame Black must now prevent Nxc6. KRN-KBN d8 36.c7 a8 37.c4 aiming for Bxd8. b7 38.b5 a2! 39.g4 e7 40.g3 40.c4!? d7 41.g3 40...d6+ The position is equal. 41.xd6+ xd6 KR-KN 42.c4+ d7 43.c5 c2 44.f5 exf5 45.gxf5 f2 46.d6 Precision: White = 67%, Black = 83%. g2 47.e4 And now Kd5 would win. b2 48.g4 b1 49.d2 h1 50.d5 h5?

50...c1+= 51.c4 b1 51.d6! White mates. c8 52.gxh5 xh5 53.c6 b8 54.e4 xf5 55.c5 Precision: White = 79%, Black = 69%. 1–0

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