26...b4! [Black intends to clear the d4–square for his pieces and If possible, create a passed pawn on the queenside.]

27.Nxc4? [¹27.cxb4 Nxb4 28.Rxd8 Rxd8 29.Qxc4 Rd4 30.Bxf4! gxf4 31.Qe2™ Nd3 32.Rd1 Nc5 33.Rb1 Rb4 34.Nc4 Rxb3=/+]

27...bxc3! [Now Black has obtained a dangerous passed pawn on the opponent's camp.]

[27...Bxc3?! 28.Rxd8 Rxd8 29.Rd1 Nd4 30.Qb1 Nfe2+ 31.Bxe2 Nxe2+ 32.Kf2™ Nxg3 33.Rxd8+! Qxd8 34.hxg3 Kg7³]

28.Rxd8 Rxd8 29.e5 Nxe5 30.Bxf4 gxf4 31.Nxe5 Bxe5 32.Qe4 Bg7 33.Bd3 Kg8 34.Bc2 Rd4!‚ 35.Qh7+ Kf8–+

⚫️#187 (Strategy-Black to Move)
🔸Ponkratov,P (2630)
🔸Shuvalova,Polina (2441)
🔸WCh Rapid TB 2018

13...dxe4?! [Black weakens himself on the dark squares and exposes his own weak e6–pawn to attack along a half-open file.]

[¹13...d4!? 14.Nb5 0–0 15.e5 Nh5 16.Bxc6 bxc6 17.Nxd4 Bc5 18.c3 Qd5=; 13...Qb6+!? 14.Kh1 d4 15.Na4 Qc7 16.Qe2=]

14.Nxe4 Nxe4 15.Bxe4 Qxd1 16.Rxd1 Bc5+ 17.Kg2 Ke7 18.c3+/=

1–0

⚫️#187 (Endgame-Black to Move)
🔸Ivanchuk,V (2714)
🔸Cheparinov,I (2711)
🔸Tournament of Peace 2018

38...Qd5 [38...h3+! 39.Kg3 (39.Kxh3 Qf3+ 40.Ng3 a4 41.Qc7 g6 42.Qc4 a3 43.e4 Qxf2 44.f5 gxf5 45.exf5 Qe3–+) 39...Qh1 40.Nd6+ Bxd6 41.Qxd6 Qg2+ 42.Kh4 Qxf2+ 43.Kxh3 Qxe3+ 44.Kg4 Qa7 45.Qe5 Qg1+ 46.Kh3 Qd1 47.Qc7+ Kg6 48.Kg3 Qd3+ 49.Kh4 Qd4–+; 38...Qd3 39.Ng5+ Bxg5 40.fxg5 Qd5+ 41.Kf1 Qd1+ 42.Kg2 h3+ 43.Kg3 (43.Kxh3 Qf3+ 44.Kh4 Qxf2+ 45.Kh3 Qxe3+ 46.Kg4 Qe4+ 47.Kg3 Qd3+ 48.Kf2 Qd2+ 49.Kf3 Qxg5+–) 43...Qg1+ 44.Kf3 Qxg5 45.Qc7+ Kg6 46.Qc8 Qd5+ 47.Ke2 Qh5+ 48.Ke1 Qg4 49.Kd2 Qf5 50.Ke2 Qd5 51.Qe8+ Kh7 52.Qa4 Kh6 53.Qf4+ Qg5 54.Qc4 Qe5µ]

39.f3 Qa2+ 40.Kf1 Qc4+ 41.Kf2 Qc2+ 42.Kf1 Qd1+ 43.Kf2 Qc2+ 44.Kf1 Qd3+ 45.Kf2 Qc2+

½–½

⚫️#188 (Strategy-Black to Move)
🔸Maletina,Tatiana (2270)
🔸Ponkratov,P (2630)
🔸ch-RUS Rapid GP Final 2018

Unity Chess Strategy Multiple Choice 188
public poll

A) Bg4 – 8
👍👍👍👍👍👍👍 80%
Jonas, Ali, @Sophia_Giraffe, Atharva, Michael, Hansika, Matthew, Kasyap

C) R×f3 – 2
👍👍 20%
@BehroudR, @A_Wild_Richard

B) Rb8
▫️ 0%

👥 10 people voted so far.

⚪️#188 (Endgame-White to Move)
🔸Kozul,Z (2612)
🔸Saric,Iv (2692)
🔸Tournament of Peace 2018

Unity Chess Endgame Multiple Choice 188
public poll

A) Rc1 – 9
👍👍👍👍👍👍👍 75%
@Emperatur163, Jonas, Ali, @Sophia_Giraffe, @A_Wild_Richard, Atharva, Michael, Hansika, Kasyap

C) h4 – 2
👍👍 17%
@BehroudR, Mehul

B) Q×f4 – 1
👍 8%
Matthew

👥 12 people voted so far.

GAMMA Reykjavik Open 5th round report – Decisive results galore!

https://www.reykjavikopen.com/gamma-reykjavik-open-5th-round-report-decisive-results-galore/

Halfway through the strong GAMMA #ReykjavikOpen with three players sharing the lead with 4.5/5 points.

🔹 GAMMA Reykjavik Open 2019-R5
🔹 PGN format

@UnityChess

Happy 34th Birthday to Shakhriyar Mamedyarov (World #4)! He finished second at the recent Candidates Tournament in Berlin, and his peak live rating was 2826.2 in September 2018.🎂🎉🎈