Luke McShane

no. 584

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White to play. Aronian–Carlsen, December 2019.

Carlsen won the third-place playoff, but Aronian found a nice finish in this game. What move prompted Carlsen’s resignation?

We regret that owing to print deadlines this is not a prize competition.

Last week’s solution  1…Qa7!! wins, as 2 Bxa7 Rxg2+ 3 Kh1 Rxh2+ 4 Kg1 Rag2 is mate.

Last week’s winner Paul Bell, London N10