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Subject: Re: Tactical/Combinatorial Suite, Selected from WCSAC (cleaned up)

Author: Roy Eassa

Date: 12:03:49 10/18/01

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On October 18, 2001 at 05:06:47, Uri Blass wrote:

>[D]k1q2brr/1p3pp1/p7/1P3n1n/1P2N2p/1NP5/1BB1Q1PP/2R2R1K b - - 0 1
>

1...Nhg3+! 2.hxg3

   [2.Nxg3 Nxg3+ 3.Kg1
      (3.hxg3 hxg3+ 4.Kg1 Bc5+ etc. mates)
    3...Nxe2+ -+]

2...hxg3+
   [2...Nxg3+ also wins: 3.Kh2
      (3.Nxg3? hxg3+ 4.Kg1 Bc5+ 5.Nxc5 Rh1+ 6.Kxh1 Rh8+ 7.Kg1 Rh1+ 8.Kxh1 Qh8+
9.Bh7 Qxh7+ 10.Qh5 Qxh5+ 11.Kg1 Qh2#)
       3...Nxe2 -+]

3.Kg1 Bc5+! 4.Rf2

   [4.Nf2? Bxf2+! 5.Rxf2 Rh1+ 6.Kxh1 Rh8+ 7.Qh5 Rxh5+ 8.Kg1 Rh1+ 9.Kxh1 Qh8+
10.Kg1 Ne3! 11.Bh7 Qxh7 12.Rxf7 Qh2#]

4...gxf2+

   [if now 4...Rh1+?, White escapes mate: 5.Kxh1 Rh8+ 6.Kg1 Rh1+ 7.Kxh1 Qh8+
8.Qh5! Qxh5+ 9.Kg1]

5.Qxf2

   [5.Nxf2 Ng3 6.Nxc5 Nxe2+ -+]

5...Bxf2+ -+



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