Informant 7/428

Wulebgr

Angler

Only Chess

28 Aug 08

Wulebgr

Angler

River City

Joined: 08 Dec 04
Moves: 16907

28 Aug 08

Spassky-Petrosian, Moscow 1969, possible position

White to move

ivan2908

SelfProclaimedTitler

Joined: 06 Feb 06
Moves: 23543

28 Aug 08

5 edits

Originally posted by Wulebgr
Spassky-Petrosian, Moscow 1969, possible position

White to move

[fen]r3rb1k/1p4p1/p2pbn1p/q3p3/4P3/1BN5/PPP3QP/1K3RR1 w - -[/fen]

At first glance 1. Rxf6 seems nice. If black recaptures than 2. Bxe6 removing the defender of g8. Black of course can not recapture white bishop with the rook. (Qg8 checkmate) I probably miss something here but I don't see the way to remove mate threat on the g8 square and even if black moves his bishop mate on g7 becomes possible.

EDIT: ah.. I see it now. 1...g5 removes mate threats but then white takes a lot of material, three pieces for a rook with 2. Rxf8 Rxf8 3. Bxe6

ram1977

Right Here!!!

Joined: 08 Jul 08
Moves: 1627

28 Aug 08

Originally posted by ivan2908
At first glance 1. Rxf6 seems nice. If black recaptures than 2. Bxe6 removing the defender of g8. Black of course can not recapture white bishop with the rook. (Qg8🙄 I probably miss something here but I don't see the way to remove mate threat on the g8 square and even if black moves his bishop mate on g7 becomes possible.

EDIT: ah.. I see it now. 1...g5 ...[text shortened]... reats but then white takes a lot of material, three pieces for a rook with 2. Rxf8 Rxf8 3. Bxe6

I agree with Ivan... I too see material advantage for White... I am feeling sleepy right now so I might be wrong 🙂

Any other line???

heinzkat

Joined: 25 Apr 06
Moves: 5939

28 Aug 08

Originally posted by ram1977
Any other line???

1. Rxf6 Bxb3
2. Rxf8+

For the rest, no, it's a pretty shallow combination it seems.

Fat Lady

Joined: 21 Feb 06
Moves: 6830

28 Aug 08

Originally posted by ivan2908

EDIT: ah.. I see it now. 1...g5 removes mate threats but then white takes a lot of material, three pieces for a rook with 2. Rxf8 Rxf8 3. Bxe6

In your line White would only be two pieces for a rook up as he started off a piece down.

However 1. Rxf6 g5 2.Rxe6 leaves White a piece up.

I've spent five minutes on this and can't see anything deeper. Has Black got a spectacular defence which we've all missed?

Wulebgr

Angler

River City

Joined: 08 Dec 04
Moves: 16907

28 Aug 08

Originally posted by heinzkat
1. Rxf6 Bxb3
2. Rxf8+

For the rest, no, it's a pretty shallow combination it seems.

Perhaps it's shallow at that point, but the original diagram comes from the end of a possible line in Geller's analysis in Informant. The combination begins with a pawn sacrifice from this position:

Spassky played 15.g4.

heinzkat

Joined: 25 Apr 06
Moves: 5939

28 Aug 08

I meant shallow as in "not deep"; after 1. Rxf6 the combination has been played and at the same moment already is over. "Shallow" seems to have other meanings too; excuse me.

Wulebgr

Angler

River City

Joined: 08 Dec 04
Moves: 16907

28 Aug 08

1 edit

Originally posted by heinzkat
I meant shallow as in "not deep"; after 1. Rxf6 the combination has been played and at the same moment already is over. "Shallow" seems to have other meanings too; excuse me.

I understood your meaning, and agree with you.