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Deep Junior (Computer) vs Garry Kasparov
FIDE Man - Machine WC (2003), New York, NY USA, rd 2, Jan-28
Sicilian Defense: Kan. Polugaevsky Variation (B42)  ·  1/2-1/2
ANALYSIS [x]

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Kibitzer's Corner
Jan-28-03  mdorothy: Interesting, Kasparov seems to have defied normal anti-comp techniques, and has decided that this game is going his way: tactics rich. Apparantly, he was mad at himself for Qa1+ instead of right away moving f4. I can kindof understand what he's getting at, and I can see kinda where things would come together, but I can't really find a line. Theres not a lot of outstanding options for junior's next move, so I'm not sure which one would be the best choice. Anyways, if Qa1+ is his one mistake in every 200 moves (estimate of GM's that I heard somewhere) then he shouldn't have too many more problems, unless real bad fatigue falls.
Jan-28-03  PVS: The question is: does he play for a win as white in game three?
Jan-28-03  mdorothy: He better play for a win.. I don't know who said it, but its been said, "The best way to ensure a draw is to play for a win." Anyways, his aggressive style has proved good so far, and if he can see those moves like f4 instead of Qa1 during the game instead of immediately after, he should have a great game. Who doesn't like this aggressive chess?
Jan-28-03  Sylvester: Whoever said "The best way to ensure a draw is to play for a win," was wrong. You need to risk losing to play for a win.
Jan-28-03  mdorothy: I didn't create it, I just quoted it, but I think the logic is that if you play for a win, you are guaranteeing that you play the best move you know to make. I know what your saying, tho, and you may play a certain line over another for it is more drawish. But, regardless, I think he should play for the win.. take him Kaspo!!
Jan-28-03
Premium Chessgames Member
  Sneaky: Chess is the ultimate situation of "kill or be killed." My opponent wants nothing more than to see me dead, and failing that, he takes delight in my suffering. It's a very violent game! So what do you do when a maniac queen and her cohorts are out to slit your throat? Building a fortress and hiding in it is rarely a viable solution--more likely, you need to confront your attacker and present credible threats against his own life.

About this game, I think Kasparov's play was very strong. axb3 e.p. was an inspired move! But you got to hand it to the computer, too--I wasn't even thinking about Qxf8+ as a possible way to save the game.

Jan-29-03  PVS: It is not clear, what, if any, mental states can be attributed to a computer.
Jan-29-03  BrownRecluse: I found this interesting quote the other day:
"...It's about rehearsed, controlled burst of aggression. It's about psychologically reducing your opponent to ruble, then making him vulnerable. It's a mental discipline requiring great self-restraint." - Jon Saraceno on the Tyson-Norris fight. He's talking about boxing but I have found no better description of chess! Cheers!
Jan-29-03  Ashley: In some ways chess is like a mental boxing match. There are strict rules, but it is very aggressive.
Jan-29-03  JustAFish: I had to leave my computer yesterday right after 27 Ra8. I went home and played the game out on a board for a while and thought for sure that Kasparov was going to play Qf6, which, in to my admittedly limited capacity for chess analysis, seems like it keeps up the pressure. Here's what I thought about: 27 ... Qf6 28. h3 e3 29. fxe f3! Surely Garry could have made something out of that?
Jan-29-03
Premium Chessgames Member
  Honza Cervenka: 25...f4 contains terrible threat 26...e3. If white makes some indifferent move, for example 26.a3, then black can continue 26...e3 27.fxe3 (27.Nf1 exf2+ 28.Rxf2 Qd4 and 29...Ne4 etc.) 27...fxe3 28.Qxe3 Qa1+ and wins. If white plays 26.Nf1, then black can also continue 26...e3 27.Ra8!? (27.fxe3?? fxe3 -+; 27.Nxe3 Bf5! 28.Rc1 Qb2 29.Rd1 fxe3 30.Qxe3 Bd3 with clear advantage of black in ending.) 27...Nd3 28.f3 Qd4 29.Kh1 (29.Re2 Nc1 etc.) 29...Ne5 30.Rc1 (what else against threat Qd1?) 30...e2 and the game is over. And after 28.Rxc8 (instead of 28.f3) black can hold advantage playing 28...Rxc8 (But not 28...exf2+? 29.Rxf2 Rxc8 for 30.Qh3 attacking rook on c8 and knight on d3) 29.fxe3 Re8! 30.Qh3 (30.exf4?? Qd4+ -+; 30.Re2 fxe3 31.h4 /sad necessity/ Qd4 32.Kh2 /Pe3 is poissoned - 32.Rxe3 Ne5 33.Kh1 Rf8 34.Re1 Nd3 35.Rb1 Nf2+ and 36...Ng4+; 32.Nxe3 Nf4 33.Rf2 Re4 34.Nf1 Ne2+ -+/ 32...Nf4 with decisive advantage of black.) 30...fxe3 31.Qg4 h5 32.Qd1 (32.Qd7 Kf8 33.Re2 Nc1 -+; 32.Qe2 Nf4 33.Qe1 e2 -+; 32.Qf3 Qxf3 33.gxf3 e2 -+) 32...e2 33.Rxe2 Qd4+ and black wins.
Jan-31-03  AirForceOne: Honza,
How could you get this deep analysis?
Feb-01-03
Premium Chessgames Member
  Sneaky: AirForce, this is "Deep Honza"! He spits out analysis faster than Fritz 8.

He doesn't know this, but I've been pouring over his analysis for months looking for the tiniest error to call him on, but I always come up empty.

Feb-02-03  Spitecheck: I must admire Kasparov's approach to this match thus far, although he's basically a point down from where he should be, one feels he is the superior competitor. After his "regressive" loss against Karpov one may have thought he was just a little rusty, but his play here is (perhaps essentially so) innovative and energetic, only the pure calculative ability of the chip is saving Junior from a meltdown.
Feb-04-03  DonLeander: Spitecheck, we have the same sentiments as of Kasparov's game three. Think of it as "charging it up" due to his loss to Karpov on their recent rapid chess match
Feb-06-03  analyzing expert: What a fascinating game!!! A truly amazing sacrifice that proves Deep Junior is unlike any chess-computer ever, and certainly better than Deep Blue. People will analyze this game and "the move" for many years to come. This game will no doubt go down in history.
Feb-07-03  mdorothy: I like the commentary I heard on Bxh2+.

<When a machine plays something like 10...Bxh2+ against you, one thought goes through your mind. Unfortunately this is a family website and I can't print that thought here. Your second thought is, "So should I just resign?">

Feb-08-03  Spitecheck: Yeah if a human player does it to you, it's like "oh he's just blundered, this'll be easy".......if a computer does it "Oh **** I left that on?!". I could picture Kasparov's thoughts......What the....? Then he would start calculating feverishly, slowly becoming more relaxed when he was aware the sac doesn't win outright.
Aug-25-03  S4NKT: The most common answer at move 5.
is... 5. -Qc7

The fact that Garry uses 5. -Bc5
followed by 6. -Ba7
gives this game an interesting opening.

My computer says that 5. -Bc5
is the Polugaievsky variation,
but when I looked at Polugaievskies
games he uses Qc7 as well!

So what's up with this Bc5-Ba7 weapon?

Jul-26-08  MORPHY MARVELLOUS: kaspy missed 25..f4 with a great attack to follow.
May-04-09  WhiteRook48: about 25...Qa1+:
Kasparov: "You see a check like that and you just play it." Fischer: "Patzer sees a check, patzer plays a check."
Nov-30-14  yurikvelo: http://pastebin.com/saXJcQVP

this game multiPV analysis by StockFish

Nov-30-14  yurikvelo: Deep SF eval show that even 25...f4 lead to draw.
RNPP vs RPPP - K vs P advantage doesn't give Win in this position (if white don't push pawn to avoid 50-move rule)

Also this is very tough ending both for human (a lot of moves with high precision, easy to blunder and/or get time deficit) and for engine (no EGTB at that time, engine itself were not very skillful in EG)

Sep-20-17  The Boomerang: "Kasparov: "You see a check like that and you just play it." Fischer: "Patzer sees a check, patzer plays a check.""

Classy as usual from Bobby.

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