Wesley Snow's train came to a halt, waking him up. A man further down the carriage declared, "The train has stopped. We have run into a snowdrift. Heaven knows how long we shall be here. I remember once being snowed up for seven days."
Wesley looked out the window. A man with a shovel was already clearing the drift. He tapped the glass and called, "That was the Orient Express. We’ll be moving again shortly."
Wesley tried to rest, but had scarcely begun to doze when a sudden thud struck his door. He rose at once and stepped into the corridor. Nothing.
At first light the engine stirred. Wesley reached for his satchel and noticed the flap was open. Nothing missing, but his invitation lay on top, unfolded.
Outside, a line of footprints ran from the trees to the train and back again. The conductor maintained no one had boarded.
Wesley sat with the invitation in his hands, that faint unease returning.
He reached for his pocketboard, thinking a puzzle might settle his mind. The position struck him as an odd one: the sort in which White seemed determined to bring about its own downfall.
This is a selfmate. Give the sequence of moves that forces Black to mate White within two moves (both White and Black make 2 moves). Note that Black tries to avoid mating at every step, but will have no other option. Join Discord if anything is unclear.
You must be logged in and have a verified email to reveal the answer or try solving this puzzle.