Serieshelpmate
In a serieshelpmate, Black makes a sequence of moves without any reply from White, and then White checkmates in one. No intermediate checks are allowed, meaning that Black can only check on the final move of the sequence.
In a serieshelpmate, Black makes a sequence of moves without any reply from White, and then White checkmates in one. No intermediate checks are allowed, meaning that Black can only check on the final move of the sequence.