Through a series of weak moves, black creates a backrank weakness that white takes full advantage of

redlentils    --    sirlosealot
?   redhotpawn
2003.09.04     1-0     C24


1.e4 e5 2.Bc4 Nf6 3.d3 c6 4.Nf3 d5 5.Bb3 Bd6 6.exd5
One of the mainlines of the bishop's opening. The alternative is 6.Nc3.
6...Nxd5 7.O-O O-O 8.Re1 Nd7 9.Nbd2 Re8 10.Ne4 Bc7 11.Bg5
White takes the initiative. He has more space, and his pieces are developed and active.
11...f6 (D)

BR :: BB BQ BR :: BK ::
BP BP BB BN :: BP BP
:: BP :: BP ::
:: :: BN BP WB
:: :: WN :: ::
:: WB :: WP :: WN ::
WP WP WP :: WP WP WP
WR :: WQ WR WK

creates a weakness on the white diagonal. Perhaps N7f6 was better, although the pinning could be nasty.
12.Bd2 Kh8 13.h3 Nf8 14.d4 Ng6 15.c3 Bf5 16.Bc2 Ndf4 17.Nc5 Bxc2 18.Qxc2 (D)

BR :: BQ BR :: BK
BP BP BB :: BP BP
:: BP :: BP BN ::
:: WN BP ::
:: WP BN ::
:: WP :: WN :: WP
WP WP WQ WB WP WP ::
WR :: WR WK

develops the queen, making room for a rook.
18...b6 19.Bxf4 Nxf4 20.Na6 Rc8
better Bd6. pradtf: why? one reason is that black is giving up a perfectly effective B for a white N that has wandered off to the far corner of the board. mephisto2: with Bd6, black poses a piece between d1 and d8, making the sequence: 21.dxe fxe 22.Rad1 less forcing. Both rooks are still on the 8-th row and d8 is not yet accessible for white. Could follow: 22. ... Qf6 23.Qe4 Rad8 and white has still anl advantage, but not a clear win. Just one line (this is not an analysis, just what could happen): 24.Nb4 Bxb4 25.Rxd8 Rxd8 26.cxb4 Ng6 27.Nxe5 Nxe5 27.Qxe5 Qxe5 28.Rxe5 Kg8 29.Re6 Rd1+ 30.Kh2 Rd2 31.Rxc6 Rxb2 32.Rc8+ Kf6 33.a3 a5 34.Rc6+ Kf7 35.Rxb6 axb4 36 Rxb4 Rxf2 and I think black has good drawing chances in a very difficult rook endgame.
21.Nxc7 Rxc7 22.dxe5 fxe5 23.Rad1 Rd7?
Better Qf6. Now the f-rook will be isolated on the back row.
24.Rxd7 Qxd7 25.Nxe5
wins already a pawn.
25...Qd5? (D)

:: :: BR :: BK
BP :: :: BP BP
BP BP :: :: ::
:: :: BQ WN ::
:: :: BN ::
:: WP :: :: WP
WP WP WQ :: WP WP ::
:: :: WR WK

omits the defense of the back row. Qc8 was better.
26.Ng6+! hxg6
the knight can't be taken with the knight because of Rxf8#
27.Rxe8+ Kh7 28.Qe4 Nxh3+?
desperado action in a lost position
29.gxh3 Qxe4 30.Rxe4 c5 31.Kg2
black resigns.
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