Kevin Pacey wrote on Tue, Sep 18, 2018 12:12 AM UTC:
Here's a possible Seirawan Chess position showing underpromotion to a Chancellor (best option, though not the only way to win). After 1.d7xc8=C+ ka7-b7 2.Cc8-e7+ White mates in two more moves. This appears to be faster than if White chose an Archbishop or R, while choosing a Q would stalemate Black.
Here's a possible Seirawan Chess position showing underpromotion to a Chancellor (best option, though not the only way to win). After 1.d7xc8=C+ ka7-b7 2.Cc8-e7+ White mates in two more moves. This appears to be faster than if White chose an Archbishop or R, while choosing a Q would stalemate Black.