BATUMI CHESS OLYMPIAD 2018 ROUND 11 – ORDAZ VALDES vs SEBAG

This game is from round 11 of the 2018 Batumi Chess Olympiad. It features Lisandra Teresa Ordaz Valdes with White against Marie Sebag Lopez with Black.

Today’s game features a Semi Slav.

Ordaz Valdes,Lisandra Teresa (2415) - Sebag,Marie (2480)

43rd Olympiad Batumi 2018 Women Batumi (11.1), 05.10.2018

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qb3 Qe7 D43: Semi-Slav: 5 Bg5 h6 [7...g6 8.e4 dxe4 9.Nxe4 Qd8 10.Be2 Nd7 11.0–0 Nf6 12.Ng3 Bg7 13.Rad1 0–0 14.Rfe1 Qc7 15.c5 b6 16.Qc2 Nd5 17.Ne4 Rb8 18.a3 f5 19.cxb6 Qxb6 20.Nd6 Qxb2 21.Qxc6 Kh7 22.Nxc8 Safira,S (2120)-Swathi,G (2299)/Calicut 2003/CBM 095 ext/½–½ (54)] 

8.a3 

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8...g6N [8...dxc4 9.Qxc4 Nd7 10.e4 g6 11.Bd3 Bg7 12.e5 Nb6 13.Qb3 0–0 14.Ne4 Rd8 15.0–0 Rb8 16.Rfc1 Bd7 17.Qd1 Nd5 18.b4 Be8 19.Qb3 Bf8 20.g3 Ra8 21.Nfd2 a5 22.bxa5 Rxa5 23.Nc4 Babula,V (2505)-Kuporosov,V (2520)/Lazne Bohdanec 1994/CBM 040/½–½ (40)] 

9.Rd1 Bg7 10.e3 Nd7 11.Be2 dxc4 12.Bxc4 0–0 13.0–0 Rd8 

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14.e4 White intends d5 [14.h4 c5=] 

14...b6 15.Rfe1 White plans e5. Black has a cramped position 

15...Bb7 16.d5 White threatens to win material: d5xe6 

16...Nc5 17.Qc2 Rac8 18.dxe6 

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18...Nxe6 [Weaker is 18...fxe6 19.e5 Rxd1 20.Rxd1± (20.Qxd1?! Rd8 21.Qc2 b5²; 20.Nxd1?! Kf7²) ] 

19.e5 b5 20.Ba2 c5 21.Nd5 Bxd5 22.Bxd5 c4 Black gains space 

23.g3 Secures f4 

23...Nc5 24.Re3 

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24...Nd3 Will e5 fall?. Black threatens to win material: Nd3xe5 

25.Be4 Nxe5 26.Nxe5 [26.Bd5!? is an interesting idea 26...Kf8 27.Nxe5 Bxe5 28.Qe4=] 

26...Qxe5µ [26...Bxe5?! 27.Bxg6 Rxd1+ 28.Qxd1=] 

27.Rxd8+ Rxd8 28.Re2 Qd4 29.Kg2 a6 30.h4 h5 31.Qc1 Re8 

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32.Qf4? [32.f3 Rd8µ] 

32...Qf6 [¹32...f5!? 33.Bf3 Rxe2 34.Qxd4 Bxd4 35.Bxe2 Bxb2–+] 

33.Qc7 Qe7 34.Qc6 Qe6 35.Qxe6 

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35...Rxe6 [Not 35...fxe6 36.Bxg6 Rd8 37.Bxh5±] 

36.Kf3 Kf8 37.Rc2 Rd6 38.a4 Ke7 39.axb5 axb5 40.Ke2 Re6 41.Kf3 

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41...Rd6 Twofold repetition 

42.Re2?? not a good decision, because now the opponent is right back in the game [42.Ke2 Bh8 43.Bb7–+] 

42...Kd7–+ 43.Kf4 Bh6+ 44.Kf3 Rf6+ 45.Kg2 Re6 46.Kf1 Rd6 47.Bc2 Bg7 48.b3 c3 49.Re3 Bd4 50.Rf3 f5 51.Rd3 b4 52.Kg2 Kc6 53.Kf3 Kc5 54.Rd1 Ra6 55.Ke2 Ra2 56.Rc1 Bg7 57.Kd3 Ra6 58.Ke2 Bh6 

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59.Rd1? [¹59.f4–+] 

59...Bd2 60.Kd3 [60.f3–+ praying for a miracle] 

60...Rd6+ 61.Ke2 Re6+ 62.Kf3 Ra6 63.Ke2 Kd4 64.Rf1 Ra3 65.Kd1 [65.Rb1 doesn't get the cat off the tree 65...Ra2–+] 

65...Ra2 66.Bb1 

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66...c2+! Decoy: c2 

67.Bxc2 Kc3 68.Bb1 Rb2 69.Ke2 [69.Bxf5 doesn't get the bull off the ice 69...gxf5 70.Ke2 Bh6+ 71.Kf3 Rxb3–+] 

69...Bc1+ [69...Bc1+ 70.Kf3 Rxb1–+]  0–1