28.Rc1?? [Missing a golden opportunity to penetrate the opponent's camp via the 6th rank and launch a huge attack against the black king.]

[28.Re6! △R×c6 28...Qc4? (28...Nd4 29.Re7 Rh8 30.Nxd4 Qxd4 31.Bxf5! Rad8 32.Qe6 △R×h7 32...Rdg8 33.g4 Qxf4 34.Qf6 b4 35.g5+ Kh5 36.Bxg6+ Kg4 37.Bh5+ Kxh5 38.Qxf4+–) 29.Bxf5 Nd4 30.Nxd4 Qxd4 31.Re7 Rh8 32.g4+– △g5]

28...Ne7! [White has no enough compensation for the exchange anymore, and his initiative has evaporated.]

29.Rc3 d4‚ 30.a3 [¹30.Nxd4™ Rd8 31.Qb7 Rab8 32.Qxa7 Ra8 33.Qb7 Rxa2 34.Nc2 Qe4 35.Qxe4 fxe4 36.Ne3 Kg7 37.Rc7 Kf8 38.Rc2=/+]

30...Rd8! 31.Qb7? [¹31.Qe6 Qd6 32.Nxd4 Qxe6 33.Nxe6 Rd1+ △Rc8 34.Bf1 Rc8!–+]

31...dxc3 32.axb4 cxb2–+

⚫️#198 (Strategy-Black to Move)
🔸Kabanov,N (2450)
🔸Shuvalova,Polina (2441)
🔸ch-RUS Rapid GP Final 2018

15...Ne4? [15...c4! A wrong decision. Black should have used his queenside pawn majority to obtain an advantage. Notice that White could hardly have exploited his pawn majority on the kingside. 16.bxc4 dxc4 17.Re1 b5 18.Rb1 g6 19.Bc2 Ne4 20.Nxe4 Bxe4 21.Bxe4 Rxe4 22.Qc2 f5µ; 15...Qc7 16.Bxd7 Nxd7 17.dxc5 Ne5 18.g3 bxc5 19.Nxd5 Bxd5 20.Qxd5 Rcd8 21.Qe4 Nd3 22.Qg4 Nxc1 23.Rxc1 Qc8 24.Qxc8 Rxc8 25.Rxc5 Rxc5 26.Bxc5 Rd8 27.Nd4 Be5 28.Kf1 Bxd4 29.exd4 Re8³]

16.dxc5 Nxc3 17.Rxc3 Ba7 18.Qc2 [18.c6! Rxc6 19.Rxc6 Bxc6 20.Qc2 Bb5 21.Bxh7+ Kh8 22.Rd1+–]

18...g6 19.c6! Bxc6 20.Rxc6 Rxc6 21.Qxc6 gxf5+–

1–0

⚫️#198 (Endgame-Black to Move)
🔸Sarana,A (2618)
🔸Morozevich,A (2656)
🔸ch-RUS Rapid GP Final 2018

32...Rd1!! [32...Re4 33.f3 Be7 34.Qa5 Re3 35.Nf4 Rxe1+ 36.Kxe1 Bf6 37.Nd5 Bxb2 38.Qc5 Be5 39.Qxc4=; 32...Rd2 33.Qxc4 Rxb2 34.Qxa6 Ra2 35.a5 Qc7=]

33.Qb4?! [33.Qxc4?? Qd2–+; 33.f3 Rxe1+ 34.Kxe1 Qxa4-/+]

33...Qd3 34.Rxd1 Qxd1+ 35.Qe1 Qxa4 36.Nf4 [36.Qc1 Qb3 37.Nc3 a5–+]

36...c3 37.Ne6+ Kf7 38.b4 [38.bxc3 Qc4+–+]

38...Qxb4

0–1

⚪️#199 (Strategy-White to Move)
🔸Demidov,M (2520)
🔸Kabanov,N (2450)
🔸ch-RUS Rapid GP Final 2018

Unity Chess Strategy Multiple Choice 199
public poll

C) Rg1 – 8
👍👍👍👍👍👍👍 80%
مجتبی, Nikhil, @Sophia_Giraffe, @A_Wild_Richard, Srikar, @Keykav00s, Hansika, Kasyap

B) Rh2 – 2
👍👍 20%
@mahyarebrahimi1983, @Tashdid_man

A) a4
▫️ 0%

👥 10 people voted so far.

⚪️#199 (Endgame-White to Move)
🔸Kabanov,N (2450)
🔸Kokarev,Dm (2598)
🔸ch-RUS Rapid GP Final 2018

Unity Chess Endgame Multiple Choice 199
public poll

A) Qc2 – 8
👍👍👍👍👍👍👍 89%
Nikhil, @Sophia_Giraffe, Srikar, @Keykav00s, @ali_king_chess, Hansika, @Ad_Himalia, Kasyap

B) Q×d4 – 1
👍 11%
@A_Wild_Richard

C) Qb1
▫️ 0%

👥 9 people voted so far.

Positional Chess Training.

http://bit.ly/2VnQMlN

Vincent Keymer yesterday showed some brilliant calculation to claim what's likely to be the first of many supertournament wins!

http://bit.ly/2VotZXc

Is Keymer Winning? | Impressions Round 5 | GRENKE Chess Classic 2019

Congratulations to Pouya Idani on winning the 2nd Guotai Cup Belt and Road International after a last-round thriller against Wang Hao (who would have taken the title with a win & was winning for a while!):