🔹 Vasilios Kotronias - Francisco Vallejo Pons, 10th European Individual Championship (2009)
🔹 PGN format
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@unitychess

🔸Saint Louis Blits 2018
🔸Round 8
⚪️Nakamura,Hikaru (2777)
⚫️Mamedyarov,Shakhriyar (2801)
🔸1-0

37... e4??
Mamedyarov makes a huge blunder in a winning position.
37... Qg5 -+
38. Qxd3 1-0

🔸Saint Louis Blits 2018
🔸Round 9
⚪️Dominguez Perez,Leinier (2739)
⚫️Caruana,Fabiano (2822)
🔸0-1

61. Kf4??
Dominguez probably thought that grabbing the e6 pawn would be a mistake, but: 61. Rxe6! Bd7 62. Kg3 =
61... Kd6 62. Rg5 Rh4+ 63. Ke3 Rh3+ 64.Kd4 Rxa3 0-1

🔸Saint Louis Blits 2018
🔸Round 9
⚪️Aronian,Levon (2767)
⚫️Grischuk,Alexander (2766)
🔸0-1

30. Qe3??
Aronian's blunder.
30. Rg4 Rh1 -/+ would have put up more stubborn resistance.
30... Rxc4 0-1

🔸Saint Louis Blits 2018
🔸Round 12
⚪️Caruana,Fabiano (2822)
⚫️Nakamura,Hikaru (2777)
🔸0-1

46. Bc5??
46. Qc3!!
The only saving move.
46...d1=Q 47. Qg7+ Ke6 48. Qg8+ Kd6 49. Qd8+ Ke6 50. Qg8+ Ke7
51. Qg7+ Ke8 52. Qh8+ Kf7 53. Qxh7+ Kf6 54. Qh8+ Ke6 55. Qg8+ =
46... d1=Q 47.Qe7+ Kc8 48. Qe8+ Kc7 49. Qxb5 Qc6 50. Qa5+ Kd7 51. Qa7+ Qc7 0-1

⚪️#633 (Strategy-White to Move)
🔸Gulko,B
🔸Seirawan,Y
🔸US Championship, Long Beach, 1989

12.Ne4!
Heading for c5.
12.Be3 Nd5 did not promise much.
12...Ba2?! 13.Rb2 Bd5 14.Nc5 Rb8 15.e4!? Bf7 16.Be3

⚪️#634 (Strategy-White to Move)
🔸Gulko,B
🔸Chiburdanidze,M
🔸Frunze, 1985

18.Bf4!
White avoids the exchange of bishops and doesn't release Black's position.
18...Rc8 19.Ngxe4 Nf8 20.g4
White's attack will be decisive.

⚪️#635 (Strategy-White to Move)
🔸Gulko,B
🔸Ivkov,B
🔸Polanica Zdroj, 1977

Unity Chess Multiple Choice 635
public poll

B: Bb2 – 6
👍👍👍👍👍👍👍 67%
Morteza, @hoseini139562, @RichardPeng, @AryanLeekha, George, Sanjana

C: d5 – 2
👍👍 22%
@Sophia_Peng, Zhenrui

A: e5 – 1
👍 11%
@roshan_sethuraman

👥 9 people voted so far.

⚫️#636 (Strategy-Black to Move)
🔸Gorelov,S
🔸Gulko,B
🔸Minsk, 1985

Unity Chess Multiple Choice 636
public poll

B: g5 – 6
👍👍👍👍👍👍👍 55%
España 🇪🇸, رضا, Morteza, @hoseini139562, @roshan_sethuraman, @AryanLeekha

A: f4 – 4
👍👍👍👍👍 36%
@Sophia_Peng, @RichardPeng, Zhenrui, Sanjana

C: Qe7 – 1
👍 9%
George

👥 11 people voted so far.