Need help with analysis

[peter]

And so I went to see, what happened if one of these engines seeing white's andvantage against one of these not seeing it would battle it out:

[Event "Peter-PC, 120'/40+60'/20+30'"]
[Site "Quad"]
[Date "2008.12.16"]
[Round "1"]
[White "Deep Fritz 11"]
[Black "Rybka 3 32-bit"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 1"]
[PlyCount "23"]

1. Nf5 Nf4+ 2. Qxf4 gxf5 3. Qh6 Qc6+ 4. Kg3 Rg8+ 5. Kf4 Be3+ 6. Kxe3 Rg3+ 7.Kd2 Qg2+ 8. Kc3 Rxd3+ 9. Kxd3 Qe4+ 10. Kc3 Qd4+ 11. Kb3 Qd1+ 12. Ka3 1/2-1/2

[Terry McCracken]

[d] 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 2

What is White's winning plan?

22.Nf5!! wins. It's an interesting tactical fight that Black loses.

I am not sure, it looks like black has some chances to draw with perpetual. After Nf4+ Qxf4 gxf5 with the idea of Rg8+ and Qa8.

1. Rc7 looks interesting to keep the fire going. I do not think the engines could see the end of it from the starting position.

I thougt Ng8 wins but black has Qg4+! 2. Qxg4 Ne3+

Miguel

Yes, the pretty Ng8? is answered by Qg4+! and that is why Nf5!! must be played, it will win with care.

I won't post the analysis as the fellow is playing a corr. game and it wouldn't be fair to the other player.

Terry

[michiguel]

[d] 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 2

What is White's winning plan?

22.Nf5!! wins. It's an interesting tactical fight that Black loses.

I am not sure, it looks like black has some chances to draw with perpetual. After Nf4+ Qxf4 gxf5 with the idea of Rg8+ and Qa8.

1. Rc7 looks interesting to keep the fire going. I do not think the engines could see the end of it from the starting position.

I thougt Ng8 wins but black has Qg4+! 2. Qxg4 Ne3+

Miguel

Yes, the pretty Ng8? is answered by Qg4+! and that is why Nf5!! must be played, it will win with care.

I won't post the analysis as the fellow is playing a corr. game and it wouldn't be fair to the other player.

Terry

Really? This should not have been asked in the first place.

Miguel

[Terry McCracken]

[d] 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 2

What is White's winning plan?

22.Nf5!! wins. It's an interesting tactical fight that Black loses.

I am not sure, it looks like black has some chances to draw with perpetual. After Nf4+ Qxf4 gxf5 with the idea of Rg8+ and Qa8.

1. Rc7 looks interesting to keep the fire going. I do not think the engines could see the end of it from the starting position.

I thougt Ng8 wins but black has Qg4+! 2. Qxg4 Ne3+

Miguel

Yes, the pretty Ng8? is answered by Qg4+! and that is why Nf5!! must be played, it will win with care.

I won't post the analysis as the fellow is playing a corr. game and it wouldn't be fair to the other player.

Terry

Really? This should not have been asked in the first place.

Miguel

I think one is allowed to ask for help but I won't give detailed analysis as that is going too far IMO. He's a Canadian expert/master, he can do the rest.

Terry

[Terry McCracken]

[d] 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 2

What is White's winning plan?

22.Nf5!! wins. It's an interesting tactical fight that Black loses.

Actually I missed a poweful counter reply by Black, Nf5!? only draws, in fact the position is drawn!

If this is a corr. game I think it's wrong to give all the lines.

Offer Draw!

The fastest draw is Rxh7+! Nf5!? is more difficult and Black could go wrong but I think he'll find the drawing move and if you make a mistake with my original suggestion you'll lose.

Black's drawing resource after Nf5!? is Nf4+ Qxf4 gf Qh6 and either Qa8 or c6+ forces a perpetual.

If Black makes a mistake and checks with the Rook on g8 first then he loses, but I wouldn't bet on that, it's only a trap and I doubt your opponet will fall for it.