Chess puzzle

No. 824

White to play and mate in two moves. Composed by Hermann Feodor Lehner, Deutsche Schachzeitung, 1873. Email answers to chess@spectator.co.uk by Monday 28 October. 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…f6!

No. 823

Black to play. Dominguez-Shankland, US Championship 2024. Which move allows Black to escape perpetual check and win? Email answers to chess@spectator.co.uk by Monday 21 October. There is a prize of £20 for the first correct answer out of a hat. Please include an address and allow six weeks for prize delivery. Last week’s solution 1…Kd3!

No. 822

Black to play. Mamedyarov-Maghsoodloo, Global Chess League, October 2024. Maghsoodloo chose wrongly here. Out of 1…Kd3, 1…b2+ and 1…c2, which one is the best? Answers should be emailed to chess@spectator.co.uk by Monday 14 October. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and

No. 821

White to play. Ciolacu-Khotenashvili, Fide Women’s Olympiad, Budapest, September 2024. How did White crown her kingside attack? Email answers to chess@spectator.co.uk by Monday 7 October. 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. 820

White to play. Kulaots-Kadric, Budapest Olympiad, September 2024. The Estonian grandmaster spotted a neat sequence to gain a decisive material advantage. What was his first move here? Email answers to chess@spectator.co.uk by Monday 30 September. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address

No. 819

Le-Sindarov, Budapest Olympiad, September 2024. White’s next move induced immediate resignation. What did he play? Answers should be emailed to chess@spectator.co.uk by Monday 23 September. 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. 818

White to play. Niemann-Nakamura, Chess.com Speed Chess, Paris 2024. In this game from the third-place playoff match, Niemann crowned his attack in style. Which move did he play? Email answers to chess@spectator.co.uk by Monday 16 September. There is a prize of £20 for the first correct answer out of a hat. Please include a postal

No. 817

White to play and mate in two moves. Composed by Dmitry Vasilevich Klark, La Stratégie, 1868. Answers should be emailed to chess@spectator.co.uk by Monday 9 September. 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

No. 816

White to play. Caruana-Firouzja, Sinquefield Cup, 2024. Caruana exchanged rooks, but soon ran out of checks and resigned before the b2 pawn could promote. Which move would have secured a draw here? Email answers to chess@spectator.co.uk by Monday 2 September. There is a prize of £20 for the first correct answer out of a hat.

No. 815

White to play. Maghsoodloo-Nepomniachtchi, Fide World Rapid Team Championship, 2024. Maghsoodloo found a beautiful winning sequence here. What was his first move? Email answers to chess@spectator.co.uk by Monday 26 August. 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. 814

Black to play. Vidit-Al-Mudahka, Fide World Rapid Team Championship, 2024. The Qatari grandmaster landed a decisive blow here. What did he play? Email answers tochess@spectator.co.uk by Monday 19 August. 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. 813

White to play and mate in two moves. Composed by C.W.M. Feist, Hampshire Magazine, 1884. Email answers to chess@spectator.co.uk by Monday 12 August. 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…Rxh4+! 2

No. 812

Black to play. Sokolovsky-Chopra, Biel Masters, 2024. Another game played on 20 July 2024. Black is in control, but which move struck the decisive blow? Email answers to chess@spectator.co.uk by Monday 5 August. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address. Last week’s

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