Here is a puzzle mate in 6 moves on white
post your chess puzzles here
First puzzle of today is valid. In your second puzzle of today, what if 2...Rg5 ? The solution is invalid.
On the third puzzle, there is a dual, since 2.Nxg8# also works. You can fix this by adding a black piece defending either square.
Here is what I mean. In this position (trying not to spoil the answer too much), capturing the rook with the knight leads to checkmate too, so there is a dual.
Out of your puzzles posted today, I think the last one is my favourite and the most fun. Keep it up!
Here's a mate in 4: