Castling Into It

Dec. 24, 2017 :  Black should leave his King untouched. He can't 0-0-0 on the Queenside because he'll lose a Pawn, and preparing it would leave weak squares. Yet there's absolutely no way he can 0-0 on the Kingside, as I've got an open Rook file and a semi-open Knight file. But he did - and he quickly paid the price.