Chess puzzle

No. 811

White to play. This is a variation from Mirkovic-Gluzman, Belgrade 1991. Which move allows White to gain a decisive material advantage? Email answers to chess@spectator.co.uk by Monday 29 July. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize

No. 810

White has just played Kf3-e3. Which response showed this to be a decisive mistake? Email answers to chess@spectator.co.uk by Monday 22 July. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize delivery. Last week’s solution 1 Bd3! e.g.

No. 809

White to play and mate in two moves. Composed by Philip Hamilton Williams, The Chess Amateur, 1914. Email answers to chess@spectator.co.uk by Monday 15 July. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize delivery. Last week’s solution

No. 808

White to play. This is a variation from Gelbmann–Gyimesi, Hungary 1996. Black threatens mate with …Qh4 or …Qh3. How does White turn the tables? Email answers to chess@spectator.co.uk by Monday 6 July. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address. Last week’s solution 1

No. 807

White to play. Banerjee-Carroll, English Championship 2024. Ten-year old Banerjee found the only move to exploit the awkwardly pinned rookon d6. What did he play? Email answers to chess@-spectator.co.uk by Monday 1 July. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow

No. 606

White to play. Magnus Carlsen-Ding Liren, Norway Chess 2024. Ding’s last move, 29…Rb6-b2 was a blunder allowing a quick checkmate. What did Carlsen play? Email answers to chess@spectator.co.uk by Monday 24 June. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address. Last week’s solution

No. 805

White to play. Adapted from an example in Capablanca’s classic manual Chess Fundamentals. Only one move leads to a win for White. Which? Email answers to chess@spectator.co.uk by Monday 17 June. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks

No. 804

White to play and mate in two moves. Composed by Michael Lipton, Deutsche Schachzeitung, 1970. Email answers to chess@spectator.co.uk by Monday 10 June 2024. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize delivery. Last week’s solution 1…Be4!

No. 803

Black to play. Elisabeth Paehtz-Michael Adams, Salamanca Masters, May 2024. With his next move, Adams induced immediate resignation. What did he play? Email answers to chess@-spectator.co.uk by Monday 3 June. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize

No. 802

Black to play. Rocco-Ghasi, 4NCL, May 2024. White’s last move Rd1-a1 was a mistake, and with his next move Ghasi provoked instant resignation. What did he play? Email answers to chess@spectator.co.uk by Monday 27 May. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address

No. 801

Black to play. A variation from Rasmus Svane-Samuel Chow, 4NCL, May 2024. In the game, Svane avoided the capture of a bishop on d7 which would have allowed this position to occur. Which winning move for Black had he foreseen? Email answers to chess@spectator.co.uk by Monday 20 May. There is a prize of £20 for

No. 800

Black to play. Kempinski-Gupta, Bundesliga, December 2023. White has just grabbed a pawn on a7. Which move won the game for Black? Email answers to chess@spectator.co.uk by Monday 13 May. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for

No. 799

Black to play. Adorjan-Lobron, the Master Game Final, London 1982. White’s far advanced b-pawn looks likely to win the game, but Lobron’s next move turned the tables. What did he play? Answers should be emailed to chess@spectator.co.uk by Monday 6 May. There is a prize of £20 for the first correct answer out of a

No. 798

White to play and mate in two moves. Composed by Philip Hamilton Williams, the Weekly Mercury, 1896. Email answers to chess@spectator.co.uk by Monday 29 April. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize delivery. Last week’s solution

No. 797

White to play. Makkar-Cherniaev, 4NCL Spring GM, March 2024. White is a pawn down, but his pieces are well placed. How did he strike a decisive blow? Answers should be emailed to chess@spectator.co.uk by Monday 22 April. There is a prize of £20 for the first correct answer out of a hat. Please include a

No.796

Black to play. Abdusattorov-Praggnanandhaa, Prague Masters, March 2024. White has a rook for a knight. Which move allowed Black to turn the tables and gain a decisive advantage? Email answers to chess@spectator.co.uk by Monday 15 April. There is a prize of £20 for the first correct answer out of a hat. Please include a postal

No. 795

White to play. Menchik-Graf, Women’s World Championship, Semmering 1937. Which brilliantmove provoked instant resignation? Beware: there is a tempting option which falls short. Email answers to chess@spectator.co.uk by Monday 8 April. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks

No. 794

White to play and mate in two moves. Composed by Sam Loyd, Baltimore Herald 1880. Email answers to chess@spectator.co.uk by Monday 1 April. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize delivery. Last week’s solution 1 Rf3!

No. 793

White to play and mate in two moves. One of the conventional problems from the same Winton British Chess Solving Championship, composed by Huibrecht van Beek, 1899. Email answers to chess@spectator.co.uk by Monday 25 March. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address

No. 792

White to play. Brkic-Shengelia, Bundesliga, February 2024. White’s pieces coordinate far better than Black’s. Which move cashes in? Email answers to chess@spectator.co.uk by Monday 18 March. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize delivery. Last week’s