Can you deliver mate – reliably? (opens in new tab)

Take a look at this position. The black king is completely trapped and will soon be mated, but can White do it in just three moves? Try and work it out in your mind. Spoiler: it begins with an absurd-looking move. Test your skills on this and on three more tricky mating positions. In each case the diagrams will defend and refute any bad moves you play. Solutions to the problems, with full video explanations, will come in a week. Learn and enjoy.