Triangulation: chess endgame

Return to the position with the other side to move.

Triangulation uses a three-move route to return your king to its square while the opponent cannot match that timing. The aim is the same useful position with the opponent to move. Calculate the whole route and the resulting replies.

• Check that every square on the route is safe.
• Compare the position and side to move before and after.
• Use the changed timing to gain entry or force a concession.