Amazing puzzle! Black to move. Mate in 4

Got it!

Great! You must admit it not easy anyway :)

Crazy one

did you get it? :)

yes,

i found the first move quick and after it was more difficult

got it - but took me a bit -- was thinking a different move order should of worked but it does not - nice puzzle 

i didnt want to use all my time so I clicked the ? and solved. :-D

Exotic !

Thanks for sharing @Mateusz_Dubinsk

indeed, really unusual

Finding Rd2 took a lot of time.

It seems illogical at first sight, doesn't it? :D

mate in one, no?

Really?

Kc3, unless I'm missing something

sorry, Kc2

Ha embarrassing. Nc2. Don't use notation often

I think you missed Rook on h2 that can take the Knight...

Ha yep in knew something was up with that. thanks