Postiton from Tactics Program

Postiton from Tactics Program

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E

Joined
12 Jul 08
Moves
13814
27 Mar 11



I'm wanting to play Ne5 threatening mate, but the program is telling me to sac the bishop with Bf7+ followed by Ne5+. Won't I have the opportunity to capture the g4 bishop either way? Why sac my bishop?

D
Up a

gumtree

Joined
13 Jan 10
Moves
5151
27 Mar 11

Originally posted by Eladar
[fen]rn1qkb1r/ppp1pppp/5n2/8/2B3b1/2N2N2/PPPP1PPP/R1BQK2R w - - 0 1[/fen]

I'm wanting to play Ne5 threatening mate, but the program is telling me to sac the bishop with Bf7+ followed by Ne5+. Won't I have the opportunity to capture the g4 bishop either way? Why sac my bishop?
Ne5 Be6. Stops the mate and prevents you grabbing a free bishop. On the other hand, after Ne5 Be6 Bxe6 fxe6 black's king is stuck in the centre and the knight on e5 isn't going to be kicked away anytime soon, especially if you give it some support with d4.

After Bxf7 I see Kxf7 Ne5+ Kg8 Nxg4 Nc6 and the black king has escaped. You are a pawn up but I prefer the position after Ne5 to be honest.

Naturally Right

Somewhere Else

Joined
22 Jun 04
Moves
42677
27 Mar 11

Originally posted by Diophantus
Ne5 Be6. Stops the mate and prevents you grabbing a free bishop. On the other hand, after Ne5 Be6 Bxe6 fxe6 black's king is stuck in the centre and the knight on e5 isn't going to be kicked away anytime soon, especially if you give it some support with d4.

After Bxf7 I see Kxf7 Ne5+ Kg8 Nxg4 Nc6 and the black king has escaped. You are a pawn up but I prefer the position after Ne5 to be honest.
I don't. Black's King might have gotten to g8, but he's going to have a hard time activating his King's Rook. White will thus have a long term edge in development and King security to go along with his being a pawn up.

Black's King isn't stuck in the center after the Ne5 line; he can always set up to castle long in which case the half open d-file with a Rook on it is some compensation for the ugly doubled e-pawns.

e4

Joined
06 May 08
Moves
42492
27 Mar 11

Hi Eladar.

No idea why a computer would prefer one over the other.
I guess it is because it has too give preference to one of them.

Perhaps it's because Bxf7+ does prevent Black from castling
and it is winning a pawn. (most likely the latter).

However:

Let your peers be your inspriation. Allow their bright light to guide
you as you stumble through the misty haze of the 64 squares in your
endless quest for the truth.

Actually I found this postion 30 times on the DB and White
did not play either 6.Ne5 or 6.Bxf7 in 16 of them!
Most castled or played 6.h3 with mixed results.

So ignore that set of peers. (even though the ratio is more than 50% )
I'll be having words with them.

But what is best. 6.Ne5 or 6.Bxf7+.

Lix - Blue Mon RHP 2006

6.Ne5

This is good, the attention switches from King to Queen.



RojZg - kulkarni vihang RHP 2007

6.Bxf7+

After the first round White thinks:

"Well if he set up and fell for that one, he will set up another."

And so he retreats into his shell and waits.....

He did not have to wait long.



Conclussion. Either will give you a plus.

Joined
12 Nov 06
Moves
74414
28 Mar 11

What about Qd4 after Ne5, looks interesting.

E

Joined
12 Jul 08
Moves
13814
28 Mar 11

Diopantus,

Thanks for pointing out black's bishop retreat, I didn't even see it.

No1,

I agree with you. I prefer the outcome of the bishop exchange. Winning the pawn isn't worth much to me, but preventing the black king from castling does.

GP,

I think all of the positions are from actual games, so it is choosing the line that was used in the game. Thanks for validating both moves. Thanks for going through the effort of finding both lines in action and posting the games. It was very informative and educational.

s
Fast and Curious

slatington, pa, usa

Joined
28 Dec 04
Moves
53223
29 Mar 11

Originally posted by greenpawn34
Hi Eladar.

No idea why a computer would prefer one over the other.
I guess it is because it [b]has too
give preference to one of them.

Perhaps it's because Bxf7+ does prevent Black from castling
and it is winning a pawn. (most likely the latter).

However:

Let your peers be your inspriation. Allow their bright light to guide
you as you ...[text shortened]... onclussion. Either will give you a plus.[/b]
That's good just as long as your peers don't stain their underwear🙂