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Subject: Endgame Test Position, From Adams-Kasimdzhanov Revisted

Author: Daniel Jackson

Date: 22:10:59 07/09/04


The Uzbekistani GM was low on time and had played a very incautious move (Rd6).
After checking the lines for a few minutes Adams struck out: 31.Rxb4! axb4
32.Ne7+ Qxe7 33.Qxd6. Now instead of defending the b-pawn (with 33...Qxd6
34.Rxd6 Rb8 or even 33...Qe4) Kasimdzhanov went for 22...Qe2 after which Adams
could pick up the second pawn with 34.Rd4 h5 35.Qxb4. Everone expected Black to
resign, but Kasimdzhanov fought on desperately until the time control and a few
moves after that. 35...Qf3 36.h4 Rc8 37.Qd2 Rc3 38.Rf4 Qc6 39.Kh2 Rxb3 40.Qd8+
Kh7 41.Qd1 Rb7 42.Qxh5+ Kg8 43.Rd4 Qf6 44.Rd2 Ra7 45.a5 g6 46.Qb5 Kh7 47.Qb6
1-0.

A resulting position had Kasimdzhanov exchanged Queens and played 34..Rb8.

Programs have a tough time finding Rb5! after 35.Rd5!..Kf8, so increasing the
difficulty 2plys may be asking too much;-)

Is there a program after 34..Rb8, that will play 35.Rd5! and after 35..Kf8
follow through with 36.Rb5!, with a won ending for White? This would show either
very deep calculation or very good "chess knowledge", or a bit of both.

So the challenge is even harder, after 34..Rb8 35.Rd5!!, and no, Rd7, doesn't
count!:o)

And yes, I'll be surprised if _any_ program solves this "human" solution.

[D]1r4k1/5ppp/3R4/8/Pp6/1P4P1/5P1P/6K1 w - - 0 35

Daniel






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