Author: Yar
Date: 21:35:48 06/13/05
Go up one level in this thread
John, No problem for shredder: depth=25 -+ 2,76 4...Rf4 5.Rxe5 5.Rxe5 Bxe5 6...d3 7.Re8+ Kg7 8.Rd8 Kf7 9.Nf1 Ke7 10.Rc8 Rxg4+ 11.Kh2 Rh4+ 12.Kg3 Kd7 13.Rh8 c3 14.Kxh4 c2 15.Rxh7+ Ke8 16.Rh8+ Ke7 17.Rh7+ Rf8 is just waste of tempo cause black has to play rf4 later to prevent white's re4. With best regards, Yar On June 13, 2005 at 17:37:35, John Merlino wrote: >On June 13, 2005 at 16:18:44, Yar wrote: > >>In your line after 4.g4: instead of rf8!? black should play rf4! -+ >> >>On June 13, 2005 at 14:24:35, John Merlino wrote: >> >>>On June 13, 2005 at 13:42:04, Yar wrote: >>> >>>>How long does it to your engine to find Qf5 ? >>>>[D] 5r1k/6bp/p1p1Q3/P2pn3/1Pp2q2/4R3/2R2PPN/6K1 b - - >>>> >>>>With best regards, >>>> >>>>Yar >>> >>>CM9_R1 on an AMD 2500 does find it eventually, but the score is not convincing: >>> >>>Time Depth Score Positions Moves >>>0:00 1/6 -0.45 87701 1...Qd4 2.Rce2 c3 3.Nf1 Ng4 4.Rxc3 >>> Qxc3 5.Qxg4 >>>0:01 1/7 -0.49 234086 1...Qd4 2.Nf1 Nd3 3.Qd6 Qh4 4.Ng3 >>> Qf4 5.Qxf4 Rxf4 6.Rxd3 cxd3 7.Rxc6 >>>0:02 1/8 -0.49 533694 1...Qd4 2.Nf1 Nd3 3.Qd6 Qh4 4.Ng3 >>> Qf4 5.Qxf4 Rxf4 6.Rxd3 cxd3 7.Rxc6 >>>0:02 1/8 -0.54 630802 1...d4 2.g3 Qf5 3.Qxf5 Rxf5 4.g4 >>> d3 5.Rd2 Rf4 >>>0:03 1/9 -0.50 965714 1...d4 2.g3 Qf5 3.Qxf5 Rxf5 4.Rxe5 >>> Rxe5 5.Rxc4 Re1+ 6.Nf1 d3 7.Rxc6 >>>0:06 1/10 -0.71 1815159 1...d4 2.g3 Qf5 3.Qxf5 Rxf5 4.Rxe5 >>> Rxe5 5.Nf3 Rf5 6.Nh4 Rb5 7.Rxc4 >>>0:14 1/11 -0.26 3829836 1...d4 2.g3 Qf5 3.Qxf5 Rxf5 4.Rxe5 >>> Rxe5 5.Rxc4 Re6 6.Nf3 d3 7.Kf1 Rd6 >>>0:58 1/11 -0.43 15582264 1...Nd3 2.Rf3 Qd4 3.Rxf8+ Bxf8 >>> 4.Rd2 Qg7 5.Qxc6 Nxb4 6.Qc8 Qf6 >>> 7.Qc7 Nd3 8.Nf3 >>>1:51 1/12 -0.56 30475782 1...Nd3 2.Rf3 Qh6 3.Rxf8+ Bxf8 >>> 4.Qc8 Qg7 5.Ng4 h5 6.Ne3 Nxb4 7.Rd2 >>> Qf6 8.Kf1 >>>3:16 2/13 -0.31 55003647 1...Nd3 2.Rf3 Qb8 3.Rxf8+ Bxf8 >>> 4.Nf3 Qxb4 5.Re2 Qd6 6.Qc8 Qf6 >>> 7.Re8 Kg8 8.Qg4+ Qg7 9.Qf5 >>>6:12 2/13 -0.48 103601247 1...Qg5 2.g3 Nd3 3.Rf3 Rxf3 4.Nxf3 >>> Qf6 5.Qe8+ Bf8 6.Kg2 Nxb4 7.Re2 >>> c3 8.Ne5 c2 9.Re1 Na2 >>>6:53 2/13 -0.58 115889058 1...Qf5 2.Qxf5 Rxf5 3.Rce2 d4 4.g4 >>> Rf8 5.Rxe5 d3 6.R5e3 dxe2 7.Rxe2 >>> c3 8.Kf1 Bh6 9.Ke1 >>>8:23 3/14 -0.54 142354151 1...Qf5 2.Qxf5 Rxf5 3.Rce2 d4 4.g4 >>> Rf8 5.Rxe5 Bxe5 6.Rxe5 d3 7.Nf1 >>> c3 8.Ne3 d2 9.Rc5 Re8 10.Nd1 Re1+ >>> 11.Kg2 >>> >>>jm > >I input the line all the way up to 4.g4, and this is what The King says: > >Time Depth Score Positions Moves >0:00 1/5 -0.08 6681 4...Rf8 5.Rxe5 d3 6.Re1 d2 7.Nf1 > dxe1=Q 8.Rxe1 >0:00 1/6 -0.46 12832 4...Rf8 5.Rxe5 d3 6.Nf1 dxe2 7.Rxe2 > c3 8.Ne3 Re8 >0:00 1/7 -0.48 31226 4...Rf8 5.Rxe5 d3 6.Re8 dxe2 7.Rxe2 > c3 8.Kf1 Bh6 9.Ke1 >0:00 1/8 -0.50 81195 4...Rf8 5.Rxe5 d3 6.Re6 dxe2 7.Rxe2 > c3 8.Kf1 Bh6 9.Ke1 Rd8 >0:00 1/9 -0.66 195283 4...Rf8 5.Rxe5 Bxe5 6.Rxe5 d3 7.Nf1 > c3 8.Re6 d2 9.Nxd2 cxd2 10.Rd6 > Rf4 11.Rxd2 Rxg4+ 12.Kh2 Rxb4 >0:01 1/10 -0.66 442656 4...Rf8 5.Rxe5 Bxe5 6.Rxe5 d3 7.Nf1 > c3 8.Re6 d2 9.Nxd2 cxd2 10.Rd6 > Rf4 11.Rxd2 Rxg4+ 12.Kh2 Rxb4 >0:03 1/11 -0.67 920858 4...Rf8 5.Rxe5 d3 6.Re6 dxe2 7.Rxe2 > c3 8.Re4 Rd8 9.Nf1 Bd4 10.Re6 Rf8 > 11.Re2 >0:07 2/12 -0.66 2164645 4...Rf8 5.Rxe5 Bxe5 6.Rxe5 d3 7.Nf1 > c3 8.Re6 Rc8 9.Re4 d2 10.Nxd2 cxd2 > 11.Rd4 Rg8 12.Rxd2 Rxg4+ 13.Kh2 > Rxb4 >0:25 3/13 -0.75 7022954 4...Rf8 5.Rxe5 Bxe5 6.Rxe5 d3 7.Kf1 > c3 8.Ke1 c2 9.Rc5 Rxf2 10.Kxf2 > d2 11.Rxc2 d1=Q 12.Rxc6 Qd2+ 13.Kg3 > Qe1+ 14.Kh3 Qe3+ 15.Kg2 >0:55 4/14 -0.86 15850362 4...Rf8 5.Rxe5 Bxe5 6.Rxe5 d3 7.Kf1 > c3 8.Ke1 c2 9.Rc5 Rxf2 10.Kxf2 > d2 11.Rxc2 d1=Q 12.Rxc6 Qd2+ 13.Kg3 > Qe1+ 14.Kh3 Qe3+ 15.Kh4 Qe2 >2:59 5/15 -0.76 51748358 4...Rf8 5.Rxe5 Bxe5 6.Rxe5 d3 7.Kf1 > c3 8.Ke1 c2 9.Rc5 Rxf2 10.Kxf2 > d2 11.Rxc2 d1=Q 12.Rxc6 Qd2+ 13.Kg3 > Qe1+ 14.Kh3 Qe3+ 15.Kh4 Qf2+ 16.Kh3 >9:40 6/16 -1.10 166648710 4...Rf8 5.Rxe5 d3 6.R5e3 dxe2 7.Rxe2 > Rf4 8.Kg2 c3 9.Kg3 Bh6 10.Rc2 Rc4 > 11.Nf1 c5 12.bxc5 Kg7 13.Ne3 Bxe3 > 14.fxe3 Rxc5 >22:58 7/17 -1.06 395472560 4...Rf8 5.Rxe5 d3 6.R5e3 dxe2 7.Rxe2 > Rf4 8.Kg2 c3 9.Kg3 Bh6 10.Rc2 Rc4 > 11.Nf1 Bf4+ 12.Kf3 Be5 13.Ne3 Rxb4 > 14.g5 Kg8 > >So, as you can see, it still likes 4...Rf8, and this search is 9 ply deeper than >the previous one. > >jm
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