A Challenging Mate In 5-Can you find the first move?

I've created this nice mate in 5 problem that has some changed mates. The question is, can you find the the first move, aka the key?

there is mate in 5?

i don't see it can you show?

tacticspotter wrote:

i don't see it can you show?

The point here is for you to solve it, or wait for someone else to! Invite your friends to have a try is you wish.

Alright i might as well find it out using engine lol I really cannot find

tacticspotter wrote:

Alright i might as well find it out using engine lol I really cannot find

That's okay. Learning how to solve chess problems can take time.

engine says mate in 9...

oh at depth 48 engine say mate in 5

How can you have both white bishops on light colored squares?  c8 & f1

BigD2867 写道:

How can you have both white bishops on light colored squares?  c8 & f1

promoted(ik it don't make sense)

I am just guessing- Rh6 followed by Rg6 and B×g4# if after Rh6 any random move let say Ne8  , Rg6 B×e7 clearing kings path R×g4 after any blacks move Rf3 or any move on 4th rank is is Checkmate

shivam2627 wrote:

I am just guessing- Rh6 followed by Rg6 and B×g4# if after Rh6 any random move let say Ne8  , Rg6 B×e7 clearing kings path R×g4 after any blacks move Rf3 or any move on 4th rank is is Checkmat

That's not it. Keep looking!

now tell what's wrong with my solution

shivam2627 写道:

now tell what's wrong with my solution

bishop sac

tacticspotter wrote:
shivam2627 写道:

now tell what's wrong with my solution

bishop sac

Exactly which move

You leave Black's bishop unpinned and the Black king will soon get away from h3

i said that part in my solution