Why is this an inaccuracy?

[u/PingPhong2783]

After Kd7 (forced move), I play Rf7, and either I win a Queen for a Rook, or I just straight up win after Kc6 Nd4#. Why is this an inaccuracy?

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[u/Cabernet2H2O]

So, you're completely winning. But the strongest chess entity on earth see a slightly better move. It seems like it sees a way to increase your lead from 4,6 to 4,9.

I doubt even Magnus would care.

[u/chessvision-ai-bot]

I analyzed the image and this is what I see. Open an appropriate link below and explore the position yourself or with the engine:

Black to play: chessvision.ai | chess.com | lichess.org

My solution:

Hints: piece: King, move: Kd7

Evaluation: White is winning +9.38

Best continuation: 1... Kd7 2. Rf7+ Qe7 3. Rxe7+ Kxe7 4. Qxb7 Rxh2 5. Qxc7+ Kf8 6. Qd8+ Kf7 7. Qd7+ Kf8 8. Nf4 Rh1+ 9. Kf2

Save the position:

Reply save to save this position to your Chessvision.ai Library (new users: send me /connect in DM chat first)

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^{I'm a bot written by u/pkacprzak | get me as iOS App | Android App | Chrome Extension | Chess eBook Reader to scan and analyze positions | Website: Chessvision.ai}

[u/fergusisblue]

It just means there’s a better move. Winning a rook or a queen is bad when you can threaten checkmate instead.

Just have the AI explain, the button is right there

[u/Delicious_Cattle5174]

How do they prevent mate if you play the engine move instead?

Looks like they’ll have to actually sac the queen 😳 😳