Author: Uri Blass
Date: 00:27:49 09/03/02
Go up one level in this thread
On September 03, 2002 at 03:11:13, Terry Ripple wrote: >On September 03, 2002 at 02:13:32, Uri Blass wrote: > >>On September 02, 2002 at 19:43:39, Terry Ripple wrote: >> >>>On September 02, 2002 at 14:13:18, Roy Eassa wrote: >>> >>>>On September 02, 2002 at 14:07:18, Terry Ripple wrote: >>>> >>>>>On September 02, 2002 at 13:12:39, Roy Eassa wrote: >>>>> >>>>>>On September 02, 2002 at 00:56:19, Jouni Uski wrote: >>>>>> >>>>>>>[D]r2q1r1k/p2bb3/1pn1p1Q1/4P3/2pP4/2P5/P4PPP/1RB2RK1 w - - 0 19 >>>>>>> >>>>>>>best move is Re1!!, which Brutus played in tournament level >>>>>>>(Qh5+ seems to lead to draw) >>>>>>>in my AMD 450 Mhz no program finds Re1 in 1 hour (Goliath 3.6 took 61 min) >>>>>>> >>>>>>>Jouni >>>>>> >>>>>> >>>>>>I'm pretty sure Fritz 7 wouldn't find it in under an hour. >>>>>> >>>>>>Here's a quick analysis: >>>>>> >>>>>> >>>>>>1.Re1! >>>>>> >>>>>> [or 1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ Rxg8 6.f4 +-] >>>>>> >>>>>>1...Be8 2.Qh6+ Kg8 3.Re3 Nxe5 >>>>>> >>>>>> [3...Bh4 4.Re4 Bxf2+ 5.Kh1 Nxe5 6.Rxe5 Bxd4 7.Rg5+ Qxg5 8.Bxg5 Bg7 >>>>>> 9.Qxe6+ Bf7 10.Qg4 +-] >>>>>> >>>>>>4.Qxe6+ Rf7 5.Rg3+ Kh8 6.Bf4 Nf3+ 7.gxf3 Bf6 8.Be5 +- >>>>>---------------------------------- >>>>>I'am only using an AMD 266 Mhz with 64 Ram! I let Fritz run for almost 4 hours >>>>>which should simulate a faster (1,000 Mhz) processor running around 1 hour. >>>>> >>>>>Fritz 7 didn't find "Re1", but the line it uses wins back a Rook and the passed >>>>>pawns on the Kingside look dangerous for Black in the ending if played correctly >>>>> >>>>>Regards, >>>>> Terry >>>>> >>>>> New position >>>>>r2q1r1k/p2bb3/1pn1p1Q1/4P3/2pP4/2P5/P4PPP/1RB2RK1 w - - 0 1 >>>>> >>>>>Analysis by Fritz 7: >>>>> >>>>>1.Qh5+ >>>>> ± (1.38) depth: 7/24 00:00:00 31kN >>>>>1.Qh5+ Kg8 2.Bh6 Bf6 3.Qg6+ Kh8 4.Bxf8 Bxe5 5.Qh5+ Kg8 >>>>> +- (1.41) depth: 8/19 00:00:00 60kN >>>>>1.Qh5+ Kg8 2.Bh6 Bf6 3.Qg6+ Kh8 4.Bxf8 Bxe5 5.Qh5+ Kg8 6.dxe5 Qxf8 >>>>> +- (1.41) depth: 9/23 00:00:01 140kN >>>>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qh5 Be8 6.Qh3 Bg6 >>>>> +- (1.41) depth: 10/23 00:00:03 341kN >>>>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qf3 Qg6 6.Qh3 Kg8 7.f4 >>>>> ± (1.16) depth: 11/27 00:00:09 1053kN >>>>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qf3 Qg6 6.Qh3 Kg8 >>>>> ± (1.16) depth: 12/33 00:00:33 3846kN >>>>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qf3 Qh7 6.Be3 >>>>> ± (1.10) depth: 13/36 00:03:49 25279kN >>>>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ >>>>> ± (1.10) depth: 14/36 00:08:29 57986kN >>>>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ >>>>> ± (1.07) depth: 15/39 00:23:03 161173kN >>>>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ >>>>> ± (1.04) depth: 16/43 01:22:05 574067kN >>>>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ >>>>> ± (0.97) depth: 17/45 03:41:49 1573278kN >>>> >>>> >>>>The line you give is identical to the line I showed in the first variation. It >>>>is a perfectly good line and should also win the game. Too bad this position >>>>didn't have just a single winning line. >>>------------------------------------------- >>>Searching for over 12 hours Fritz 7 still says that Qh5+ is a good move and i >>>also believe that it's a good move! >>> >>>Regards, >>> Terry >>> >>>New position >>>r2q1r1k/p2bb3/1pn1p1Q1/4P3/2pP4/2P5/P4PPP/1RB2RK1 w - - 0 1 >>> >>>Analysis by Fritz 7: >>> >>>1.Qh5+ >>> ± (1.38) depth: 7/24 00:00:00 31kN >>>1.Qh5+ Kg8 2.Bh6 Bf6 3.Qg6+ Kh8 4.Bxf8 Bxe5 5.Qh5+ Kg8 >>> +- (1.41) depth: 8/19 00:00:00 60kN >>>1.Qh5+ Kg8 2.Bh6 Bf6 3.Qg6+ Kh8 4.Bxf8 Bxe5 5.Qh5+ Kg8 6.dxe5 Qxf8 >>> +- (1.41) depth: 9/23 00:00:01 140kN >>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qh5 Be8 6.Qh3 Bg6 >>> +- (1.41) depth: 10/23 00:00:03 341kN >>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qf3 Qg6 6.Qh3 Kg8 7.f4 >>> ± (1.16) depth: 11/27 00:00:09 1053kN >>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qf3 Qg6 6.Qh3 Kg8 >>> ± (1.16) depth: 12/33 00:00:33 3846kN >>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qf3 Qh7 6.Be3 >>> ± (1.10) depth: 13/36 00:03:49 25279kN >>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ >>> ± (1.10) depth: 14/36 00:08:29 57986kN >>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ >>> ± (1.07) depth: 15/39 00:23:03 161173kN >>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ >>> ± (1.04) depth: 16/43 01:22:05 574067kN >>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ >>> ± (0.97) depth: 17/45 03:41:49 1573278kN >>>1.Qh5+ Kg8 2.Bh6 Rf7 3.Qg6+ Kh8 4.Qxf7 Qg8 5.Qxg8+ >>> ± (0.97) depth: 18/49 12:38:51 5448205kN >> >>No >> >>Fritz does not believe that Qh5+ is a good move. >> >>1.41/10 >>1.16/11 >>1.16/12 >>1.10/13 >>1.10/14 >>1.07/15 >>1.04/16 >>0.97/17 >>0.97/18 >> >>You see that the score is always goes down. >> >>0.97 does not mean winning and is often a draw. >> >>I doubt if Qh5+ is winning. >> >>Uri >----------------- >Hi Uri, >This move certainly has equal chances if not a slight plus for White due to the >passed pawns on the kingside! > >I would take White over the Black side any time! > >Regards, > Terry Slight plus means that I doubt if it wins when there seem to be no doubt that Re1 is winning. Uri
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