Chess Puzzle of the Week (393): Solution

On Monday I invited you to analyse this position.

The game concluded with these moves, most of which were forced.

45.Kg3 Qe1+ 46.Kg4 h5+ 47.Kg5 c1=Q 48.Qxd5 Qg3+ 49.Kh6 Qxf4+ 50.exf4 Qxf4+ 51.Kh7 Rh8+ 52.Kxh8 Qh6+ 53.Kg8 Qxg6+ 54.Kh8 Qh6+ 1/2-1/2

After move 47 Black has an enormous material advantage, but is forced to sacrifice a queen and a rook for perpetual check.

How much of this were you able to analyse?

You can play through the whole game here. As always, click on any move for a pop-up window.