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Old March 1st 07, 07:44 AM posted to rec.games.chess.analysis
Ron Ron is offline
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Default Position vs. Tactics (with a little endgame stuff thrown in)


So I played a game tonight, as black, in the two knights defense.

We eventually reached this position:

2r3k1/5pp1/3br2p/1p6/1P2b3/2P1N3/3B1PPP/R4RK1 w - - 0 26

I've made a few minor mistakes up to this point, but basically, I feel
pretty good here. My opponent has an extra pawn, but it's backwards on
an open file. I have the two bishops and the center is clear.

(This is the second game in two nights where I've ended up with the
bishop pair, and I keep telling myself "it's an advantage, it's an
advantage." Since I've won both of them, maybe it is.)

After a few moves, we reached this position:

3r2k1/4rpp1/3b3p/3R4/1Pp5/3bN3/3B1PPP/2R3K1 w - - 8 31

My pieces are a little disorganized, but I still feel good. My
opponent's given the pawn back, but if I can get my pieces sorted out
I'm in good shape. Then my opponent plays:

31. Nxc4?

31. ... Bxc4 32.Rxc4 Bxh2+

Winning the exchange. It's just one of those moves. You spend all this
time focusing on strategy (is my bishop pair worth the extra pawn?,
etc), and the game is decided because of of the player's misses a
two-mover. (FWIW, my opponent is rated 1860 on FICS, and this was a 25
25 game).

Anyway, we got into an endgame, and eventually reached this position:

8/6p1/3R1pkp/1rB5/1Pr5/5P2/6PK/8 b - - 0 40

Here I played very conservatively, playing:

40. ... Rbxb4!?

My feeling was that, while this move reduced my material advantage, it
eliminated all of white's winning chances. The pure rook ending might be
more likely to be a draw, but his bishop guarding the pawn can actually
be more active (on f8, attacking g7) defending the pawn than my rook can
be blockading it.

I wouldn't mind anybody's comments on this exchange. It feels a little
cowardly, quite frankly. Nevertheless, if I was careful, I felt like I
had good chances in the ensuing rook ending (although I know how drawish
rook endings can be). That outside passed pawn was a little scary,
thoug, and I was happy to be rid of it.

It all worked out for the best, though as we eventually reached this
position:

8/6p1/8/7p/r4k2/2R2P1K/8/8 b - - 5 49

49. ... g5 50.Rb3 Ra2! (I think. I don't really trust my annotations in
rook endings) 51.Rb2?!

A fairly simple trap, but it looks like black wins anyway:

Any move along the 3rd rank runs into 52. ... g4+ 53.fg hg+ 54.Kh4 Rh2+
55.Rh3 Rxh3#

Any move except to b4 runs into a variant of the same thing, with
54.Rh2+ being mate.

That leaves 51.Rb4+, which I think loses, but obviously there's a ton of
fight left in this: 51. ... Kxf3 52.Rb3+ (else g4+ and Rh2+) Kf2
53.Rf3+! (Rb5 g4+ 53.Kh2 Ra3) Ke1 54.Kg3 h4+ 55.Kg4 Rg2+ 56.Kh3 Rf2
57.Ra3 Kf2! and now the threat of Rf3+ forces white to check the black
king all the way to h5, where he can push the pawns, make some progress,
and start all over again.

Thankfully, but opponent didn't make me do any of this, and I finished
simply with:

51. ... g4+! 52.Kh4 Rxb2 1-0.

-Ron
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Old March 2nd 07, 08:16 AM posted to rec.games.chess.analysis
SBD SBD is offline
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First recorded activity by ChessBanter: Nov 2006
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Default Position vs. Tactics (with a little endgame stuff thrown in)

On Mar 1, 1:44 am, Ron wrote:

49. ... g5 50.Rb3 Ra2! (I think. I don't really trust my annotations in
rook endings) 51.Rb2?!


That leaves 51.Rb4+, which I think loses, but obviously there's a ton of
fight left in this: 51. ... Kxf3 52.Rb3+ (else g4+ and Rh2+) Kf2
53.Rf3+! (Rb5 g4+ 53.Kh2 Ra3) Ke1 54.Kg3 h4+ 55.Kg4 Rg2+ 56.Kh3 Rf2
57.Ra3 Kf2! and now the threat of Rf3+ forces white to check the black
king all the way to h5, where he can push the pawns, make some progress,
and start all over again.



Nice game, but there is not a ton of fight left in that position. I
think 40. ...Ra2 is premature - improve the position of the roook on
the 4th first with Rd4 or Rc4, but even your Ra2 works just fine. Also
I don't think you can play 56. ...Rf2 and then 57... Kf2... (smiles)
and I think 56. ...Rg1 is stronger than your 56. .. Rf2, although
everything is winning at that point. 56. ... Rg1 57. Kh2 Rg4 58. Kh3
Re4; now if the WR leaves the f-file, the black king gets back into
play 59. Rb3 Kf2/Ke2; 59. Rf6 Re3+ looks like a quick lights out to
me. Letting him check you over to h5 is unnecessary.

Nicely done!


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