Cooking The Opening Book with Stockfish

[Don]

21. Nd5

[d]rn1k3r/1b1n3p/p5p1/1B1N4/5Q2/8/PPP3PP/2K5 b - - 0 10

Ok, got it. I want to analyze this a bit and will get back in the next day or so.

[Don]

21. Nd5

[d]rn1k3r/1b1n3p/p5p1/1B1N4/5Q2/8/PPP3PP/2K5 b - - 0 10

14. Re1 Qd6
15. Bxb5 Be7
16. Nxe6 fxe6
17. Bxe7 Qxe7
18. Rxe6 Qxe6
19. Re1 Qxe1+
20. Qxe1+ Kd8
21. Nd5 axb5

[D]rn1k3r/1b1n3p/6p1/1p1N4/8/8/PPP3PP/2K1Q3 w - - 0 9

Komodo is quite happy, believing that Nd5 is not a good move. I'm not sure either color has enough to win, but this is certainly very unblanced which means a program can mis-evaluate it easily.

[marcelk]

21. Nd5 looks lost for White. (my program gives -3.3 for it, but +1.0 for Qh4+)
How about following 21. Qh4+ instead? (looks like draw though)

[Don]

21. Nd5 looks lost for White. (my program gives -3.3 for it, but +1.0 for Qh4+)
How about following 21. Qh4+ instead?

I have played this out with 2 different lines, and black wins both games. I believe 21. Nd5 is dead lost, but perhaps there are resources that I missed.

I looked at 22. Qh4+ after 21... axb5 and also 22. Qc3 which is what Komodo recommends.

[marcelk]

21. Nd5 looks lost for White. (my program gives -3.3 for it, but +1.0 for Qh4+)
How about following 21. Qh4+ instead?

I have played this out with 2 different lines, and black wins both games. I believe 21. Nd5 is dead lost, but perhaps there are resources that I missed.

I looked at 22. Qh4+ after 21... axb5 and also 22. Qc3 which is what Komodo recommends.

21. Qh4+ not 22. Qh4+

[Don]

21. Nd5 looks lost for White. (my program gives -3.3 for it, but +1.0 for Qh4+)
How about following 21. Qh4+ instead?

I have played this out with 2 different lines, and black wins both games. I believe 21. Nd5 is dead lost, but perhaps there are resources that I missed.

I looked at 22. Qh4+ after 21... axb5 and also 22. Qc3 which is what Komodo recommends.

21. Qh4+ not 22. Qh4+

No, I mean after 21. Nd5 axb6 white THEN playing 22. Qh4+ and moving the black king around a bit. 22. Qc3 is probably a bit better.

I agree with you that Nd5 is no good but I have not looked at your suggested Qh4+ instead of Nd5.

[Don]

21. Nd5 looks lost for White. (my program gives -3.3 for it, but +1.0 for Qh4+)
How about following 21. Qh4+ instead?

I have played this out with 2 different lines, and black wins both games. I believe 21. Nd5 is dead lost, but perhaps there are resources that I missed.

I looked at 22. Qh4+ after 21... axb5 and also 22. Qc3 which is what Komodo recommends.

21. Qh4+ not 22. Qh4+

No, I mean after 21. Nd5 axb6 white THEN playing 22. Qh4+ and moving the black king around a bit. 22. Qc3 is probably a bit better.

I agree with you that Nd5 is no good but I have not looked at your suggested Qh4+ instead of Nd5.

21. Qh4+ looks better than Nd5 for sure and as good as anything I've seen so far for white other than the winning 14. Nxe6 which we are avoiding here.

[tano-urayoan]

Komodo is quite happy, believing that Nd5 is not a good move. I'm not sure either color has enough to win, but this is certainly very unblanced which means a program can mis-evaluate it easily.

Wow sorry I had the wrong position on my board(as you could see from the diagram I posted). Qh4 was the move. Sorry for my confusion.
Intended position was
21. Qh4 if Kc7
22. Qf4+ Kd8
and now 23. Nd5
sorry again for my blunder.

[Don]

Komodo is quite happy, believing that Nd5 is not a good move. I'm not sure either color has enough to win, but this is certainly very unblanced which means a program can mis-evaluate it easily.

Wow sorry I had the wrong position on my board(as you could see from the diagram I posted). Qh4 was the move. Sorry for my confusion.

No problem.

Intended position was
21. Qh4 if Kc7
22. Qf4+ Kd8
and now 23. Nd5
sorry again for my blunder.

Komodo sees the position as very close to even now.

21. Qh4 Kc7
22. Qf4+ Kd8
23. Bxd5

[D]rn1k3r/3n3p/p5p1/1B1b4/5Q2/8/PPP3PP/2K5 w - - 0 24

[tano-urayoan]

Komodo sees the position as very close to even now.

21. Qh4 Kc7
22. Qf4+ Kd8
23. Bxd5

23. Nd5 Bxd5
24. Qg5

[d] rn1k3r/3n3p/p5p1/1B1b2Q1/8/8/PPP3PP/2K5 b - - 0 11

As I said above We could arrive at a position with a queen and 4 pawns against rook, 2 knights and 2 pawns, the question is this position really equal? For the engines white could not make progress it seems, but for a human position looks very playable.