Are there ways to win a rook instead of 1 move mate?

Just curious

by Sf line I see only knight fork with checks, but no clean rook win

Where is M1?

@RemRus said in #3:

Where is M1?

49...f5#

@aVague said in #2:

[Are there ways to win a rook instead of 1 move mate?] by Sf line I see only knight fork with checks, but no clean rook win

Is this the sort of thing that you are looking for?
49...Nf6+ 50 Kf4 Nh5+ 51 Kg4 Nxg3 52 Kh4 Nf5+
Apparently, the machine thinks that it is plausible that White could choose something like 52 Kh4 because of the possibility of 52 Bxg3 Rxg3+ 53 Kxg3 Kd5.

@kindaspongey said ^

Where is M1?

49...f5#

@aVague said in #2:

[Are there ways to win a rook instead of 1 move mate?] by Sf line I see only knight fork with checks, but no clean rook win

Is this the sort of thing that you are looking for?
49...Nf6+ 50 Kf4 Nh5+ 51 Kg4 Nxg3 52 Kh4 Nf5+
Apparently, the machine thinks that it is plausible that White could choose something like 52 Kh4 because of...

why 51 Kg 4? he can take a knight for a rook, because there is d6 bishop, I was searching for clean rook win, but it seems imposiible

@kindaspongey said in #4:

... Is this the sort of thing that you are looking for?
49...Nf6+ 50 Kf4 Nh5+ 51 Kg4 Nxg3 52 Kh4 Nf5+
Apparently, the machine thinks that it is plausible that White could choose something like 52 Kh4 because of the possibility of 52 Bxg3 Rxg3+ 53 Kxg3 Kd5.

@aVague said in #5:

... why 51 Kg 4? he can take a knight for a rook, because there is d6 bishop, I was searching for clean rook win, but it seems imposiible

After 49...Nf6+ 50 Kf4 Nh5+, the only legal alternative to 51 Kg4 is 51 Ke4, allowing 51...f5#.
Apparently, the machine thinks that it is plausible that, after 49...Nf6+ 50 Kf4 Nh5+ 51 Kg4 Nxg3, White could choose something like 52 Kh4 because of the possibility of 52 Bxg3 Rxg3+ 53 Kxg3 Kd5.

@kindaspongey said ^

... Is this the sort of thing that you are looking for?
49...Nf6+ 50 Kf4 Nh5+ 51 Kg4 Nxg3 52 Kh4 Nf5+
Apparently, the machine thinks that it is plausible that White could choose something like 52 Kh4 because of the possibility of 52 Bxg3 Rxg3+ 53 Kxg3 Kd5.

@aVague said in #5:

... why 51 Kg 4? he can take a knight for a rook, because there is d6 bishop, I was searchin...

there is no mate obvious, we exchange knight for rook, without clean win, see SF line

Your #5 question was, "... why 51 Kg 4? ..."

The answer to THAT question IS indeed:
After 49...Nf6+ 50 Kf4 Nh5+, the only legal alternative to 51 Kg4 is 51 Ke4, allowing 51...f5#.

Your display is NOT about 49...Nf6+ 50 Kf4 Nh5+ 51 Ke4.
Your display is about a line where White DOES play 51 Kg4 and Black continues with 51...Nxg3.
Apparently, the machine can think that it is plausible that, after 49...Nf6+ 50 Kf4 Nh5+ 51 Kg4 Nxg3, White could choose something like 52 Kh4 because of possibilities like 52 Bxg3 Rxg3+ 53 Kxg3 Kd5 or (as your machine shows) 52 Bxg3 f5+.

@kindaspongey said ^

Your #5 question was, "... why 51 Kg 4? ..."

The answer to THAT question IS indeed:
After 49...Nf6+ 50 Kf4 Nh5+, the only legal alternative to 51 Kg4 is 51 Ke4, allowing 51...f5#.

Your display is NOT about 49...Nf6+ 50 Kf4 Nh5+ 51 Ke4.
Your display is about a line where White DOES play 51 Kg4 and Black continues with 51...Nxg3.
Apparently, the machine can think that it is plausible that, after 4...

I don't mind Kg4 for white, I didn't mentioned that move, all I mention is that leads for exchange rook for knight , that's all, without clean rook win for black

@aVague said in #5:

... why 51 Kg 4? ...

@aVague said in #9:

I don't mind Kg4 for white, I didn't mentioned that move,

Everyone can see that you mentioned 51 Kg4 in your question, approximately 3 hours ago.

@aVague said in #9:

all I mention is that leads for exchange rook for knight , that's all, without clean rook win for black

The machine apparently considers 49...Nf6+ 50 Kf4 Nh5+ 51 Kg4 Nxg3 52 Bxg3 Rxg3+ 53 Kxg3 Kd5 to be such a bad position for White, that it thinks White might plausibly choose something like 52 Kh4 instead of 52 Bxg3. In the event of something like
49...Nf6+ 50 Kf4 Nh5+ 51 Kg4 Nxg3 52 Kh4 Nf5+, I suppose that it might be considered that Black won a "clean rook".