SF15 apparently fails in this position

[Mike Sherwin]

[pgn][Event "Computer chess game"]
[Site "DESKTOP-HFVHK2B"]
[Date "2023.03.14"]
[Round "?"]
[White "mjshe"]
[Black "mjshe"]
[Result "*"]
[BlackElo "2400"]
[ECO "C44"]
[Opening "Scotch Gambit"]
[Time "08:35:44"]
[Variation "London Defence"]
[WhiteElo "2400"]
[TimeControl "40/7200:40/7200:7200"]
[Termination "unterminated"]
[PlyCount "24"]
[WhiteType "human"]
[BlackType "human"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. O-O cxb2 7. Bxb2
Nf6 8. e5 Nh5 9. Nbd2 d5 10. exd6 O-O 11. Ne4 Bf5 *
[/pgn]
42/50 03:58 3,813,064k 15,960k +0.57 Nf3-g5 Nh5-f4 Qd1-f3 Bf5xe4 Ng5xe4 Nf4-g6 Bc4-b3 c7xd6 Ra1-d1 Kg8-h8 Qf3-h5 Qd8-h4 Qh5xh4 Ng6xh4 Ne4xd6 Bb4xd6 Rd1xd6 Nc6-a5 Bb3-d5 f7-f6 Rf1-d1 Ra8-d8 Bd5-e6 Rd8xd6 Rd1xd6 Nh4-g6 Bb2-c3 Na5-c6 Be6-b3 h7-h6 Rd6-d7 b7-b5 Rd7-c7 Ng6-e7 Kg1-f1 Rf8-d8 Rc7-b7 Ne7-f5 Rb7xb5 Nf5-d4 Rb5-d5 Nd4xb3 Rd5xd8+ Nc6xd8 a2xb3 Nd8-e6 Kf1-e2 Kh8-g8

And after Nf3-g5 Bf5-g6

40/62 02:35 2,512,573k 16,111k -1.51 d6xc7 Qd8xc7 Qd1-b3 Qc7-e7 a2-a3 Bb4-a5 Qb3-e3 Qe7xe3 f2xe3 Ba5-b6 Ra1-e1 Nh5-f4 Nf3-h4 Nf4-d3 Nh4xg6 Nd3xb2 Bc4-a2 h7xg6 Ng5xf7 g6-g5 Rf1-f3 g5-g4 Nf7-d8+ Kg8-h7 Rf3xf8 Ra8xd8 Rf8xd8 Nc6xd8 Kg1-f1 Bb6-c5 Kf1-e2 a7-a5 Ba2-b3 b7-b5 Re1-a1 Nd8-b7 Ra1-a2 Nb2-c4 a3-a4 Nc4xe3 a4xb5 Ne3xg2 Ke2-d3 Ng2-e3 Ra2-e2 Ne3-f5 Re2-g2 Nb7-d6 Rg2xg4 Nd6xb5

[MonteCarlo]

Hmmm...did you maybe move the wrong knight to g5?

That eval and PV lines up if you play Neg5 instead of Nfg5.

After Nfg5 Bg6? f4! things don't look good for black.

Cheers!

[Ajedrecista]

Hello Mike:

I tried SF 15.1 instead of SF 15, but I agree with user MonteCarlo: it seems that in the second analysis you played Neg5 instead of Nfg5. I went through the line of the second analysis and the first knight move by white is Nf3-h4, that is, the knight was still on f3.

Regards from Spain.

Ajedrecista.