Last week’s puzzle: Yang-Fan Zhou crashed through against Sjef Rijnaarts (Amsterdam 2013) by means of a queen sacrifice to draw the black king into a mating net created by two rooks and a knight:

26. Qxe6! fxe6 27. Rxf8+ Kg7 28. R1f7+ Kh6 29. Rh8 g5 (or 29… Qd2 30. Rhxh7+ Kg5 31. h4+ Kg4 32. Rf3 threatening Rg3#) 30. Rhxh7+ Kg6 31. Rhg7+ (A slightly quicker finish was 31. Rfg7+ Kf6 32. Nf2) 31… Kh6 32. Nf2 Rb8 33. Ng4+ Kh5 34. Rh7+ Kg6 35. Rfg7#