After 10 rounds in the 2018 World Rapid Chess Championship in St. Petersburg, the leaders are Andreikin, Nepomniachtchi, Yu, Artemiev, Wang, and Matlakov, all with 7.5 out of 10. Rapids is 15 minutes per game with 10 second increment after every move. There are 15 rounds.

🔹 Round 10 of FIDE World Rapid-ch Open 2018, St. Petersburg
🔹 PGN format

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🔹 FIDE World Rapid-ch Women 2018, St. Petersburg
🔹 PGN format

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🔸chess.com IoM Masters Douglas ENG 2018
🔸Round 4
⚪️Naiditsch,Arkadij (2721)
⚫️Tregubov,Pavel V (2588)
🔸1-0

38.Qg4! [Naiditsch Intends to exploit Black's back rank weakness.]

[38.Ng5!? △R×b5 38...Qe8 39.Rc7 Rxc7 40.Rxc7 Nc6 41.Qg4 Ne7 42.Qd7 Qxd7 43.Rxd7 Ng6 44.Nxf7 Rh5 45.e6+–]

38...Re6 39.Ng5 Qxe5 40.Qxh4! [Black has no sensible defence against White's threats.]

[40.Qh5!? Ng6 41.Rxd5 Qxd5 42.Rc8+ Nf8 43.Qh7#]

1–0

⚪️#106 (Strategy-White to Move)
🔸Mohammad Fahad,Rahman (2263)
🔸Andriamasoandro,Miora (2126)
🔸Olympiad 2018 Batumi

14.Qf4! [The queen transfers to the kingside and joins the attack.]

[14.Rac1 b6 15.Qf4 Be7 16.Qh4 Kg7 17.Qh6+ Kg8 18.Rd3 Bb7 19.Rh3²; 14.f4 b6 15.Qe3 h6 16.Bh4 Bb7 17.Rf1 Rad8 18.Rad1 Be7 19.Bf2 Kg7 20.Nd2±]

14...Be7 15.c5 [15.Qh4! Kg7 16.f4 Ng8 17.Bxe7 Rxe7 18.Rd2 Nc5 19.Qf2±]

15...e5 16.cxd6 Qxd6 17.Rxd6 [17.Qf3! Qe6 18.Rac1±]

17...exf4 18.Rd4 Nf8 19.Bc4 b5 20.Nd5 Nxd5 21.Bxd5 Ra7 22.Bxf4 Ne6 23.Bb8 Nxd4 24.Bxa7 Nc2 25.Rd1 Nb4 26.a3 Nxd5 27.exd5 Bd6 28.Bc5 Rd8 29.Kf1 [29.Bxd6 Rxd6 30.Nc5 Be6 31.Ne4 Rd8 (31...Rxd5?? 32.Nf6++–) 32.Rd2 Bf5 33.Nc5+–]

29...Kf8 30.Ke2 Bf5? [30...Bb7]

31.Bxd6+ Rxd6 32.Nc5 Ke7 33.Ke3 Rb6 34.b4 Kd6 35.Kd4 h5 36.f3 Rb8 37.Rc1 Rb6 38.Re1 Rb8 39.Re3 Bd7 40.Nxa6 Rh8 41.Nc5 Bf5 42.Ne4+ Bxe4 43.fxe4 Rc8 44.e5+ Kd7 45.Rc3 Ra8 46.d6 Kd8 47.Kd5 Rb8 48.Rc7 Ra8 49.Rxf7 Rxa3 50.Rf8+ 1–0

⚫️#106 (Endgame-‌Black to Move)
🔸Anton Guijarro,David (2639)
🔸Bogner,Sebastian (2619)
🔸World Chess Olympiad 2018 Batumi

37...e5? [37...Kf8!? 38.Qh6+ (38.Qxg6 Qxd5+ 39.Ka3 Qc5+ 40.Ka2=) 38...Kf7 39.Qh7+ Kf6 40.Qg8 Rc7 41.Bd3 Qg1 42.Qh8+ Kg5 43.Qg7 Kf4 44.Qf7+ Ke3 45.Bxg6 Qd1 46.Qe6+ Kf2 47.Qe4 Kg3 48.Qe3+ Qf3 49.Qg5+ Kh2 50.h4 Rc4 51.Qxe7 Qxd5 52.Qe2+ Kg3 53.Qe1+ Kh3 54.Ka3 Rxh4 55.Qe3+ Kg2 56.Qe2+ Kh3; 37...Kg7 38.Bd3 e5 39.Qxg6+ Kf8 40.Qf6+ Rf7 41.Qd8+ Kg7 42.Qg5+ Kf8 43.Qh6+ Rg7 44.Kb3 Qb6+ (44...Qxd5+ 45.Bc4 Qb7+ 46.Ka2 d5 47.Qd6+ Qe7 48.Qxd5+–) 45.Bb5 Qc7 46.Qh8+²]

38.Qxg6+ Kf8 39.Qf6+ Kg8 40.Qg6+ Kf8 41.Qf6+ Kg8 42.Qe6+ Kh8 43.h4 Rg7 44.Qe8+ Rg8 45.Qh5+ Kg7 46.Qg4+ Kh8 47.Qh5+ Kg7 48.Qg5+ Kf7 49.Qf5+ Kg7 50.Qe6 Rh8 51.Bd3 Qc7 52.Qg6+ Kf8 53.Qf6+ Kg8 54.Kb1 [54.Bf5!+–]

54...Qf7 55.Qxd6 Qf3 56.Qe6+ Kf8 57.Bb5 e4 58.d6 Rh5 59.Qe7+ Kg8 60.d7 Qd1+ 1–0

⚪️#107 (Strategy-White to Move)
🔸Khoroshev,Nikita (2416)
🔸Al-Aqrabi,Saleh (2158)
🔸Olympiad 2018 Batumi

Unity Chess Strategy Multiple Choice 107
public poll

A) Bd6 – 5
👍👍👍👍👍👍👍 71%
future, Nikhil, @Sophia_Peng, @RichardPeng, Michael

B) g4 – 1
👍 14%
@h_a_d_I_1169

C) Kd2 – 1
👍 14%
@BehroudR

👥 7 people voted so far.

⚫️#107 (Endgame-‌Black to Move)
🔸Vazquez Igarza,Renier (2573)
🔸Georgiadis,Nico (2522)
🔸World Chess Olympiad 2018 Batumi

Unity Chess Endgame Multiple Choice 107
public poll

A) Ne2 – 5
👍👍👍👍👍👍👍 42%
@Portomogor, @Najib44, @Zamani9899, @BehroudR, @h_a_d_I_1169

B) N×e4 – 4
👍👍👍👍👍👍 33%
@Empyriumm, @Rashidi_1997, Nikhil, @RichardPeng

C) Nb5 – 3
👍👍👍👍 25%
@Sophia_Peng, @WataxPin, Michael

👥 12 people voted so far.

30 years ago this week Mikhail Tal defeated Jan Timman 3½:2½ in a 6-game match sponsored by the Dutch broadcasting organisation KRO, at Hilversum, Dec 1988.

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"Errors have nothing to do with luck; they are caused by time pressure, discomfort or unfamiliarity with a position, distractions, feelings of intimidation, nervous tension, over-ambition, excessive caution, and dozens of other psychological factors."

🔸 Pal Benko

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Nona Gaprindashvili, In 1963, already a World Champion at 22.

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🔴LIVE WRC Day 3 https://www.youtube.com/watch?v=ErxhqnbgP0k