Chess puzzle

no. 450

1 April 2017 9:00 am

Black to play. This position is from Gligoric-Stein, Moscow 1967. Can you spot Black’s winning coup? Answers to me at…

no. 449

25 March 2017 9:00 am

White to play. This position is from Mareco-Nakamura, Pro-League, chess.com 2017. Can you spot White’s winning coup?Answers to me at…

no. 448

18 March 2017 9:00 am

White to play. This is from Horton–Murphy, Varsity Match 2017. Can you spot White’s winning coup? Answers to me at…

no. 447

11 March 2017 9:00 am

Black to play. This position is from Kozera-Wang, Varsity Match 2016. White has powerful threats and Black has only one…

no. 447

9 March 2017 3:00 pm

Black to play. This position is from Kozera-Wang, Varsity Match 2016. White has powerful threats and Black has only one…

no. 446

4 March 2017 9:00 am

White to play. This position is from Tabatabaei-Vakhidov, Aeroflot Open, Moscow 2017. White has sacrificed a piece for a powerful…

no. 446

2 March 2017 3:00 pm

White to play. This position is from Tabatabaei-Vakhidov, Aeroflot Open, Moscow 2017. White has sacrificed a piece for a powerful…

no. 445

25 February 2017 9:00 am

Black to play. This position is from Morozevich-Sadler, Reykjavik 1999, a game from Sadler’s heydey, when he was regularly beating…

no. 445

23 February 2017 3:00 pm

Black to play. This position is from Morozevich-Sadler, Reykjavik 1999, a game from Sadler’s heydey, when he was regularly beating…

no. 444

18 February 2017 9:00 am

White to play. This position is a variation from Hou Yifan-Ju, Gibraltar 2017. Hou lost this game to her compatriot.…

no. 444

16 February 2017 3:00 pm

White to play. This position is a variation from Hou Yifan-Ju, Gibraltar 2017. Hou lost this game to her compatriot.…

no. 443

11 February 2017 9:00 am

Black to play. This position is from Gledura-Topalov, Gibraltar 2017. Bulgarian grandmaster Veselin Topalov is not the force he used…

no. 443

9 February 2017 3:00 pm

Black to play. This position is from Gledura-Topalov, Gibraltar 2017. Bulgarian grandmaster Veselin Topalov is not the force he used…

no. 443

9 February 2017 3:00 pm

Black to play. This position is from Gledura-Topalov, Gibraltar 2017. Bulgarian grandmaster Veselin Topalov is not the force he used…

no.442

4 February 2017 9:00 am

White to play. This position is from So-Wojtaszek, Wijk aan Zee 2017. White has only one move to win. Can…

no.442

2 February 2017 3:00 pm

White to play. This position is from So-Wojtaszek, Wijk aan Zee 2017. White has only one move to win. Can…

no. 441

28 January 2017 9:00 am

White to play. This is from Réti-Spielmann, Opatija 1912. How did Réti conclude his kingside attack? Answers to me at…

no. 441

26 January 2017 3:00 pm

White to play. This is from Réti-Spielmann, Opatija 1912. How did Réti conclude his kingside attack? Answers to me at…

no. 440

21 January 2017 9:00 am

White to play. This is from Réti-Tartakower, Vienna 1910. Can you spot White’s beautiful tactical coup? Answers to me at…

no. 440

19 January 2017 3:00 pm

White to play. This is from Réti-Tartakower, Vienna 1910. Can you spot White’s beautiful tactical coup? Answers to me at…

no. 439

14 January 2017 9:00 am

Black to play. This position is from Topalov-Anand, London Classic 2016. How did Black conclude? Answers to me at The…

no. 439

12 January 2017 3:00 pm

Black to play. This position is from Topalov-Anand, London Classic 2016. How did Black conclude? Answers to me at The…

no. 438

7 January 2017 9:00 am

White to play. This is from Carlsen–Karjakin, New York play-off (Game 4) 2016. What was Carlsen’s stunning move to retain…

no. 438

5 January 2017 3:00 pm

White to play. This is from Carlsen–Karjakin, New York play-off (Game 4) 2016. What was Carlsen’s stunning move to retain…

no.437

29 December 2016 3:00 pm

White to play and win. This is a position from Caruana-Kramnik, Leuven 2016. Answers to me at The Spectator by…