Author: Amir Ban
Date: 07:04:09 07/17/02
Go up one level in this thread
On July 17, 2002 at 00:03:24, K. Burcham wrote: > > >In game 2, Kasparov thought that there was human interference with this line. >He requested the logs to see for himself that these two moves were actually in >the Deep Blue eval. >Kasparov did not think any program would play 36.axb5 avoiding 36.Qb6 or the >move 37.Be4. > >But it seems that todays programs will accomplish what Deep Blue was trying to >do in the game. >Deep Blue opened up the a file and blocked Kasparov's play with 37.Be4, limiting >blacks mobility. > >Below in the examples you will see that two of todays strongest programs will >also accomplish this same objective. Both Fritz7 and Chess Tiger 14.0 will open >the a file and control the a file. also both Fritz7 and Chess Tiger 14.0 will >play Be4 limiting Kasparov's mobility with black. > You show below that the two programs play 36.Qb6, not axb5. You are actually strengthening Kasparov's question "how could Deep Blue fail to play 36.Qb6 ?". 5 years later, I've yet to see a program that plays 36.axb5. Amir >All three programs, Deep Blue, Chess Tiger 14.0 and Fritz7 put the >squeeze on black, blocked with the Be4 move, opened the a file, threatened to >capture blacks bishop, forced black to protect the loss of pawns, etc. > >I started each program after Kasparov's move 35...Bxd6. >after each program analyzed for several hours, I took the line from each >program and played it through to the position after blacks move 40. >This way we can cover both controversial moves. > > > > >Deep Blue vs Kasparov game 2 > >Deep Blue position after Kasparov 35...Bxd6 > [D] r1r1q1k1/6p1/p2b1p1p/1p1PpP2/PPp5/2P4P/R1B2QP1/R5K1 w - - 0 1 > > >Deep Blue vs Kasparov line from game 2 starting with move 36. >36.axb5 axb5 37.Be4 Rxa2 38.Qxa2 Qd7 39.Qa7 Rc7 40.Qb6 Rb7 >41.Ra8+ Kf7 42.Qa6 Qc7 43.Qc6 Qb6+ 44.Kf1 Rb8 45.Ra6 > 1-0 > >this is the position from the Deep Blue game after 40...Rb7 > [D] 6k1/1r1q2p1/1Q1b1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/R5K1 w - - 0 1 > > > >Chess Tiger 14.0 Depth 22 >36.Qb6 Qf8 37.axb5 axb5 38.Ra6 Kh7 39.Be4 Rxa6 40.Qxa6 Rb8 >41.Qc6 Qd8 42.Ra6 Bf8 43.g4 Qe8 44.Qxe8 Rxe8 >45.Rb6 > >this is the position after using Chess Tiger line after 40...Rb8. > [D] 1r3q2/6pk/Q2b1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/R5K1 w - - 0 1 > > > >Fritz 7 23/58 13 hours 41667827kn score .88 >36.Qb6 Qe7 37.axb5 Rab8 38.Qe3 axb5 39.Be4 Qd8 40.Kh2 Ra8 >41.Ra6 Rcb8 42.Qf2 Kh8 43.Ra7 > >this is the position after using Fritz 7 line after 40...Ra8 > [D] r1rq2k1/6p1/3b1p1p/1p1PpP2/1Pp1B3/2P1Q2P/R5PK/R7 w - - 0 1 > > > > >[Event "IBM Kasparov vs. Deep Blue Rematch"] >[Site "New York, NY USA"] >[Date "1997.05.04"] >[Round "2"] >[White "Deep Blue"] >[Black "Kasparov, Garry"] >[Opening "Ruy Lopez: closed, Smyslov defense"] >[ECO "C93"] >[Result "1-0"] > >1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 >8.c3 O-O 9.h3 h6 10.d4 Re8 11.Nbd2 Bf8 12.Nf1 Bd7 13.Ng3 Na5 14.Bc2 c5 >15.b3 Nc6 16.d5 Ne7 17.Be3 Ng6 18.Qd2 Nh7 19.a4 Nh4 20.Nxh4 Qxh4 >21.Qe2 Qd8 22.b4 Qc7 23.Rec1 c4 24.Ra3 Rec8 25.Rca1 Qd8 26.f4 Nf6 >27.fxe5 dxe5 28.Qf1 Ne8 29.Qf2 Nd6 30.Bb6 Qe8 31.R3a2 Be7 32.Bc5 Bf8 >33.Nf5 Bxf5 34.exf5 f6 35.Bxd6 Bxd6 36.axb5 axb5 37.Be4 Rxa2 >38.Qxa2 Qd7 39.Qa7 Rc7 40.Qb6 Rb7 41.Ra8+ Kf7 42.Qa6 Qc7 43.Qc6 Qb6+ >44.Kf1 Rb8 45.Ra6 1-0 > >kburcham
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