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Subject: Re: 'Red alert' for humans ... Another Nolot-class problem?

Author: Robert Ericsson

Date: 03:05:17 12/07/98

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On December 05, 1998 at 15:47:36, Richard A. Fowell (fowell@netcom.com) wrote:
>By the way, after ... Rxc3, Rxc3, it isn't so clear to me
>that White can't set up a blockade to keep the Black King out.
>By placing the bishop on the d3-h7 diagonal, and
>the h-pawn at h6, White creates two "walls" to block the Black
>king from getting to any of his pieces - the c-file (with the Rook)
>and the white diagonal d3-h7, with the interstices blocked by
>pawn control of g7, g5, e5, and the d4 square is blocked by the
>need of maintaining the pin on the rook.
>
>What's Black's plan for penetrating that blockade?
>To the extent it involves shielding Black's king with his
>White-square bishop to cross the c-file or the 3-rank,
>can White foil this by covering the potential crossing points
>by controlling the White long diagonal with his Bishop?
>
>Perhaps Black's best plan is to trade off the white-square bishops -
>if this can be managed, simple Zugzwang will be White's downfall -
>all pawn moves lose pawns, and after the pawn moves are gone,
>White's rook is lost. White's plight is further enhanced by the
>fact that his only option to free a square to maintain King protection
>of his rook and ease out of the pin is b4, to which axb4 means that
>Kb3 is too late to stop axc3 or Bxc3.
>
> A pretty off-hand sequence is:
>
> 1.     Rxc3
> 2. Rxc3 Bd4
> 3. h6   Kf6
> 4. Bd3  Be8
> 5. Be4  Bg6
> 6. h7   Kf7
> 7. Bd3  d5
> 8. Be2  Bxh7
> 9. Bg4  Kf6
>10. Be2  Bg6
>11. Bg4  Be4
>12. Bh5  Kf5
>13. Bf7  Bg2
>14. Bg8  Bf1
>15. Bf7  Be2
>16. Bg8  Bh5
>17. Bh7+ Kxf4

Black doesn't have to bother about the rook on c3! Treat it like a bishop
ending where Bd4 and Rc3 and the white Kb2 can't do anything but wait and
see! Here is how my game went (after 28. Kb2-b2):

[Event "SWE-ch (cc) 1995"]
[Site "SSKK"]
[Date "1995.??.??"]
[Round "?"]
[White "Carlsson, Goran"]
[Black "Ericsson, Robert"]
[Result "0-1"]
[ECO "B66"]

1.e4 c5 2.Nf3 d6 3.d4 cd4 4.Nd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2
a6 8.0-0-0 h6 9.Be3 Nd4 10.Bd4 b5 11.f3 Be7 12.Kb1 Rb8 13.h4
Qa5 14.Bf6 gf6 15.a3 Qb6 16.Be2 Bd7 17.g4 b4 18.ab4 Qb4 19.b3
a5 20.Qd4 Qd4 21.Rd4 h5 22.gh5 Rh5 23.f4 Rh8 24.h5 Rb4 25.Rc4
Rc4 26.Bc4 Bf8 27.Bd3 Ke7 28.Kb2 f5 29.ef5 Bg7 30.fe6 fe6 31.Be2
Rc8 32.Rh3 Rc3 33.Rc3 Bd4 34.Bd3 Kf6 35.h6 d5 36.Bh7 Be8 37.Bd3
Bg6 38.Be2 Kf7 39.Bg4 Bf5 40.Bh5+ Kg8 41.Be2 Kh7 42.Bb5 Kh6 43.Be8
Bg4 0-1



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