GM Gregory Kaidanov has erred here with 17. Bc1 (the safer offer of a trade with Qf2 might have still left a chance). GM-elect Sam Shankland grabbed his sword and threatened to storm the castle, making the loss of material imminent and soon causing his opponent to resign.
You can see the full game score after the break.
See all the Timely Tactics from the Pied Chessman here.