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Subject: Turn those engines on -test position, Rxh7, not Qb3+

Author: Tom Brake

Date: 16:34:02 05/03/05


[d]r1b2rk1/ppq1b1pp/n1p2p2/7R/3BNN2/6QP/PPP3P1/2K4R w - - 0 1

1. Rxh7!!!! Kxh7 2. Qg6+ Kg8 3. Nh5 Bd8 4. Rf1 Rf7 5. Bxf6! Nb4 ( seen by the
silicon, turns out it's literally the only move that doesn't lose on the spot,
and also threatens perpetual after Nxa2+, Nc3+ due to the exposed White king.
and so White almost has to play ...  )

[d]r1bb2k1/ppq2rp1/2p2BQ1/7N/1n2N3/7P/PPP3P1/2K2R2 w - - 0 6

6. Rf3!! (another humanish move, not easily found by the engines, though they
do. 6. Nxg7 is also possible, but unclear IMO) Nxa2+ 7. Kb1 Nc3+ 8. Bxc3 Bf5 9.
Nhf6+!! +-

The position is from a recent thread here.  A sacrifice I noticed immediately
though admittedly couldn't fully calculate at the time.  A very aggressive and
IMO a very human move. Speculative initially, so possibly only the very
aggressive engines and ones that value king safety/attack very highly will find
it or attempt it.






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