A Puzzle with wrong answer

Today I tried to solve a puzzle which ID is #v1K5E.
I spent a few minutes and played 'Rb1', and it was told wrong. Then I played Ne1 and it was told right.
Then I asked stockfish for help with my doubt.
First, stockfish showed that white should play 'Ne1'.
However, a few moment later, stockfish showed that 'Rb1' was the best move.
Then I asked another engine for help, it also first showed 'Ne1', after a while, it showed 'Rb1' was the best move.
So the answer with this puzzle should be 'Rb1' rather than ‘Ne1’.
And I'm happy because I beat the engine in a sense.

Maybe the puzzle was using a lower depth so it thought that Ne1 was best. Also could you send the link to the puzzle?

Don't worry, just send us the link of the puzzle

https://lichess.org/training/v1K5E , Oh I see , Rb1 makes no sense huh

For me the engine shows that Ne1 is best. What depth was your stockfish at?

@Bored_2_Death said in #5:

For me the engine shows that Ne1 is best. What depth was your stockfish at?
Perhaps you can try Rb1 and see.

Hmm, Rb1 is -2.8 while NE1 is about -2.1 I don’t know why that is

At depth 27 it shows Rb1 at -4.2 and Nxe1 as -3.4. Edit: I downloaded stockfish and analyzed the position. It shows Rb1 at -6.03 and Nxe1 as -4.15.
https://imgur.com/8noFdS8
It's winning for black either way, but Rb1 wins on turn 47, while Nxe1 wins on turn 83

@pyjamascat said in #1:

Today I tried to solve a puzzle which ID is #v1K5E.
I spent a few minutes and played 'Rb1', and it was told wrong. Then I played Ne1 and it was told right.
Then I asked stockfish for help with my doubt.
First, stockfish showed that white should play 'Ne1'.
However, a few moment later, stockfish showed that 'Rb1' was the best move.
Then I asked another engine for help, it also first showed 'Ne1', after a while, it showed 'Rb1' was the best move.
So the answer with this puzzle should be 'Rb1' rather than ‘Ne1’.
And I'm happy because I beat the engine in a sense.

You are right, the engine does not evaluate the position clearly and jumps suddenly from -3 to +0,6. But the solution is correct anyway.

I think your approach 21. ... Rb1 (OH NO MY QUEEN!) is wrong because of 22. Rxb1(!). And you lost a full rook without reason. No need to take your queen and get mated in two moves (didn't even saw that, thanks engine!).

After 22. Rxb1(!) the evaluation bar drops from -3,0 to +0,6, but only if you find the ONE right move (otherwise it's already +7,8 for white).

@superflash2022 said in #8:

At depth 27 it shows Rb1 at -4.2 and Nxe1 as -3.4. Edit: I downloaded stockfish and analyzed the position. It shows Rb1 at -6.03 and Nxe1 as -4.15.

It's winning for black either way, but Rb1 wins on turn 47, while Nxe1 wins on turn 83

I think the correct Nxe1 line goes like this:
Nxe1 Rxe1 Qxf2 Be3 Qxa2(!) Bxc5 Rb2 and black wins clearly up the exchange and with a good position.

After Rb1 Rxb1 Nxh4 d4 Bf3+ Kg1 you only have ONE single winning move Qe6. All other moves loses. If you are an 3880 rated engine that is no problem, but try to find that one move as a human in a calculation 7 moves ahead. In my personal opinion that simply cannot be the solution to a 2272 rated puzzle.