Author: Dieter Buerssner
Date: 13:47:55 02/18/04
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On February 18, 2004 at 10:15:28, Mihaly Szalai wrote: >1knB4/8/7p/5R2/7K/8/3r4/7B w - - 0 1 > >White has a very nice play here: >1. Rb5+ Nb6 2. Bxb6! Rh2+ 3. Kg4! Rxh1 4. Bg1+! Kc7 5. Rb1! Kd7 6. Re1 Kc6 7. >Rd1 >Kb5 8. Rc1 Ka4 9. Rb1 +- > >I wonder how many engines can see this line and how fast. Very nice position - thanks! I tried Yace for some time (a bit over one hour), and it would not come up with a convincing line. It sees Rb5 Nb6 Bxb6 Rh2 fast, but does not show Kg4, when I analyse from the root. When I force those 4 half moves, it will find Kg4 in reasonable time. But after Rxh1, it will fail for Bg1. I guess, it would find Bg1 in an hour or so. I can confirm, that your line is correct. After analysing from back to front, yace shows a mate score (I did not log it, IIRC it was mate in 27). Regards, Dieter
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