Author: Uri Blass
Date: 11:16:08 03/04/06
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On March 04, 2006 at 13:54:53, Uri Blass wrote: >Here is some analysis of what happens after 1...Qe3 > >I see no proof that 1...Qe3 draws after 3.Qc7+ or 3.Qd7+ so it is clear that you >cannot expect programs to see 0.00 evaluation for 1...Qe3 > >[Event "?"] >[Site "?"] >[Date "????.??.??"] >[Round "?"] >[White "New game"] >[Black "?"] >[Result "*"] >[SetUp "1"] >[FEN "1r6/5kp1/RqQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/5K2 b - - 0 1"] >[PlyCount "7"] > >1... Qe3 2. Qxd6 Re8 3. h4 (3. Qd7+ Re7) (3. Qc7+ Re7 4. Qc6 Qxe4 (4... Qf4+ 5. >Bf3 Qc1+ 6. Kf2 Qd2+ 7. Kg1 Qc1+ 8. Kh2 Qf4+ 9. g3 Qxf3 10. d6) 5. d6 Qd3+ 6. >Kg1 Re8) 3... h5 4. Bf3 Qc1+ * Here is some possible line after some analysis with rybka White seems to have practical chances to win after Qe3 The line that I give with 13.Qxb5 leads to a clear advantage of white. [Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "New game"] [Black "?"] [Result "*"] [SetUp "1"] [FEN "1r6/5kp1/RqQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/5K2 b - - 0 1"] [PlyCount "7"] 1... Qe3 2. Qxd6 Re8 3. h4 (3. Qd7+ Re7) (3. Qc7+ Re7 4. Qc6 Qxe4 (4... Qf4+ 5. Bf3 Qc1+ 6. Kf2 Qd2+ 7. Kg1 Qc1+ 8. Kh2 Qf4+ 9. g3 Qxf3 10. d6) 5. d6 Qd3+ 6. Kg1 Re8 7. Ra1 Qxc3 8. Rd1 Qc2 9. Rf1 Qd2 10. Rf3 Qd4+ 11. Kh2 Qa7 12. Rg3 Rd8 13. Qxb5) 3... h5 4. Bf3 Qc1+ * Where did black go wrong? After 8...Qc2 it seems that everything is forced. 8...Qb3 9.Rf1 seems to be also good for white Maybe black blundered earlier but finding the correct moves is not a trivial task. I think that it may be a good idea to give computer to analyze the following position for a long time [D]8/4rkp1/R1Q2p1p/1p1PpP2/1Pp1B3/2P1q2P/6P1/5K2 b - - 0 4 The main question is if black can draw or cannot draw and I am not sure about it. Uri
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