Newsgroup: it.hobby.scacchi
Titolo: Il gioco di Kasparov

Chiedo a qualcuno che lo conosce bene: ma Kasparov gioca sempre così? Come
ieri? Oppure nelle partite con gli umani gioca diversamente? Immagino che
contro un computer bisogni essere molto strategici, visto che per la tattica
è difficile superare il silicio...
Ciao
Ruggero


Secondo me quando il Garry gioca contro il computer fa un po'
come RokkoSiffredi quando si tromba una bambola di gomma:
ankeggia in maniera diversa, la spupazza in modo differente
e cosi via... ;~>
--------------------------------
Inviato via 
http://arianna.libero.it/usenet/

Riporto con un copia/incolla l'analisi della partita tratta da:
http://www.x3dchess.com/news/analysisgame1.htm
Da quanto ho potuto capire, sia dalla riproposta 7.g4 che mi pare avesse
gia' giocato contro un altro ammasso di silicio, sia dal sacrificio del
pedone f2 alla 12', il nostro sta cercando di combattere contro il
proverbiale punto debole dei computer: non saper giudicare correttamente
le posizioni con materiale sbilanciato compensato da iniziativa...
Il solito effetto orizzonte: dai ad un computer un pedone in piu' e lui
giudichera' buona una variante che analizza per oltre 10 mosse, in cui
mantiene il pedone in piu'.
Quando poi si accorge che l'attacco e' imparabile ormai ci e' entrato
nella variante e buonanotte...
L'altro aspetto e' quello dell'assetto di gioco: pare che quella visiera
sia fastidiosa, cosi' dice lui in una intervista.
Effettivamente sono alquanto scettico sulla bonta' di una interfaccia
virtuale stile Johnny Mnemonic o Matrix Revolution.
E se alla fine salta fuori che GK imputera' una eventuale non vittoria
all'interfaccia che non lo ha messo a suo agio, non so mica se questa
cosa portera' benefici agli sponsor...
Garry Kasparov – X3D Fritz
X3D Man-Machine World Championship. Game 1
New York, 11.11.2003
1.Nf3 Kasparov almost always opens with 1.e4 these days, at least
against humans. But over the course of his 25 year professional career
he has played just about everything.
1...d5 2.c4 c6 3.d4 Nf6 4.Nc3 e6 (D1) Logical and normal development
into what is called the Slav Defense. This is a well-known system that
is particularly well- known to... Garry Kasparov! The X3D Fritz team
shows no fear and heads right into Kasparov's strength.
They wanted to show they didn't fear his preparation. This choice is
also relevant because in Kasparov's last computer match, against Deep
Junior in January '03, he crushed the machine in this exact opening in
the first game!
5.e3 Nbd7 6.Qc2 Bd6 [6...b6 7.cxd5 exd5 8.Bd3 Be7 9.Bd2 0-0  10.g4 Nxg4
11.Rg1 Ndf6 0-1 Kasparov,G-DEEP JUNIOR/New York USA 2003/(36)]
7.g4 A very aggressive move that offers a pawn in exchange for attacking
chances. If Black captures the pawn with ..Nxg5 White gets a lot of
pressure on the open g-file. Kasparov has played this position three
times, twice with white and once with black! He won all three games,
including one against the computer program Deep Junior earlier this
year.
7...Bb4 A normal move still in the "book" of both players. X3D Fritz has
almost three million positions in its library of opening moves and
sequences. Kasparov is legendary for his opening preparation and
knowledge. He is a walking encyclopedia of opening theory and his
opponents have a healthy fear of his surprises in the openings.
This move also takes the game away from the game Kasparov won against
Deep Junior in this line. That's a sort of psychological advantage,
being the first to spring something unexpected. Between two humans it
could also be sort of like a game of chicken, with the first player to
turn off from the previous game being the chicken. No matter how well it
plays chess, this aspect is lost on X3D Fritz. It is not, however, lost
on its creators and operators!
[7...dxc4 8.Bxc4 a) 8.g5 Nd5 9.Bxc4 Nxc3 10.bxc3 e5; b) 8.e4 e5! 9.g5
0-1 Adams,M-Kasparov,G/Dortmund 1992/CBM 29/22) (b) 9.dxe5 Nxe5 10.Nxe5
Bxe5 11.g5 Nh5) ; c) 8.g5 Nd5 9.Bxc4 Nxc3 10.bxc3 e5; d) 8.Bxc4 Anand;
8...b6 9.e4 e5 10.g5 Nh5 11.Be3 0-0 12.0-0-0 Qc7 13.d5 b5 14.dxc6 bxc4
15.Nb5 Qxc6 16.Nxd6 Bb7 17.Qc3 Rae8 18.Nxe8 Rxe8 19.Rhe1 Qb5 20.Nd2 Rc8
21.Kb1 Nf8 22.Ka1 Ng6 23.Rc1 Ba6 24.b3 cxb3 25.Qxb3 Ra8 26.Qxb5 Bxb5
27.Rc7 1-0 Kasparov,G-DEEP JUNIOR/New York USA 2003/ (27); 7...0-0 8.g5
Nh5 9.Bd2 f5 10.gxf6 Nhxf6 11.Ng5 Qe8 12.0-0-0 h6 13.h4
Shirov,A-Thorhallson,T/Reykjavik/ 1992/]
8.Bd2 Qe7 9.Rg1 Bxc3 10.Bxc3 Ne4 11.0-0-0 (D2) A new move instead of the
usual 11.Bd3.
[11.Bd3 Nxc3 12.Qxc3 0-0 13.0-0-0 dxc4 14.Bxc4 c5 (14...b5 15.Bd3 Bb7
16.Ne5 Nxe5 17.dxe5 Rfd8 18.Kb1 a6 19.Qc2 1-0
Malakhov,V-Potkin,V/Togliatti RUS 2003/ The Week in Chess (39)) 15.g5
cxd4 16.Qxd4 a6 17.Kb1 b5 18.Be2 0-1 Milanovic,D-Djerfi,K/Belgrade
2003/CBM 96 ext (33)]
 
11...Qf6!? Now that we are out of X3D Fritz's opening library of
recorded moves it is thinking, calculating, for itself. And right away
we see a very "computer-like" move from the computer. It immediately
plays to win a pawn by attacking the unprotected knight on f3.
12.Be2 Kasparov protects his knight and offers the f2 pawn for capture.
12...Nxf2 And X3D Fritz takes the pawn! This will give White a lot of
pressure against the black position in compensation for the sacrificed
pawn. It's ironic that we have the strongest chess computer of all time
here and it is playing in the materialistic mode of the first chess
programs. In X3D Fritz's opinion, it has enough defensive resources to
rebuff Kasparov's initiative.
This battle of material vs initiative is what chess is all about.
Kasparov gives up a pawn for an attack, but if his attack doesn't
succeed then X3D Fritz will have good chances to win with the extra
material. Kasparov loves to have the initiative and such sacrifices are
his stock and trade.
13.Rdf1 Attacking the black knight. 13...Ne4 Retreating the knight. One
of the drawbacks of X3D Fritz's pawn grab is that now the f-file is open
for White's pieces. Right now Kasparov is threatening a discovered
attack on the black queen. That means when he moves his knight, there
will be a line of attack opened for his rook. 14.Bb4 (D3) Kasparov moves
his bishop away so the knight can't capture it. He uses it to prevent
the black king from castling by attacking the f8 square.
[14.Ne5 This is the discovered attack. Note that now Black's queen is
under fire from the rook on f1. When the queen moves Kasparov would be
able to capture the pawn on f7. But X3D Fritz saw well in advance that
its queen would be able to counterattack effectively. It's hard to fool
a computer looking at four million moves per second. 14...Qh4 15.Nxf7
0-0! Creating a double attack on the f7 knight. 16.Ne5 Rxf1+ 17.Rxf1
Nxe5 18.dxe5 Qxh2 Black maintains its extra pawn and has a clear
advantage.]
 
14...c5 This move apparently came as a surprise to Kasparov, who  now
went into a deep think after playing all of his previous moves at
tremendous speed. X3D Fritz gives back the pawn in order to block the
white bishop's diagonal and open lines toward the White king.
15.cxd5 exd5 16.dxc5 Qe7 Getting the queen away from the discovered
attack on the f-file and also attacking the c5 pawn. Material is now
equal, Kasparov has an edge in development and X3D Fritz has a very
well-placed knight on e4.
17.Nd4 A typically dynamic Kasparov move. He will play his knight to the
aggressive f5 square. He ignores the threat to the c5 pawn since
capturing it would cost Black a great deal of time.
17...0-0 Getting the king to safety, but allowing Kasparov to play a
powerful sequence of moves here that will win a rook for a bishop and
pawns. A rather surprising decision from a program that has already
shown itself to be a bit of a materialist! [17...Ndxc5? 18.Bb5+ Kf8 Now
the black king is stuck in the middle of the board.]
18.Nf5 Attacking the queen. 18...Qe5 19.c6 Kasparov goes for it. This
pawn push is a discovered attack. The pawn attacks the knight and at the
same time the diagonal for the b4 bishop is opened up to attack the rook
on f8. He is going to win a rook for his bishop, a gain in material, but
he usually likes to be the one giving up the material for the attack.
Now X3D Fritz will have the initiative and more active pieces. 19...bxc6
20.Bxf8 (D4)
 
The logical continuation, although he could also have checked the black
king and infiltrated with his knight with 20.Ne7+.
20...Kxf8 Our Grandmaster commentators were expecting X3D Fritz to
recapture with the knight instead of moving his king into the middle of
the board. The machine prefers to keep its pieces more active and isn't
worried about its king at all.
A human would instinctively worry about putting his king out into
traffic. A computer just looks at a few hundred million positions, sees
no danger, and plays what it thinks is best.
[20...Nxf8 21.Bd3 (21.Qxc6? Rb8 With great attacking chances for Black.)
]
21.Ng3 Kasparov wants to trade material. He has a material advantage and
every exchange will bring him closer to realizing it.  21...Ndc5 22.Nxe4
Nxe4 23.Bd3 Threatening yet more trades.
23...Be6 Finally developing this bishop and preparing to lodge it on the
d5 square after Kasparov captures on e4. The bishop also protects the f7
square on the vulnerable f-file. Computers always defend tenaciously.
24.Bxe4 dxe4 Kasparov's mission to exchange pieces has been successful,
but how to now convert his slight material advantage into a win?
25.Rf4 Bd5 Protecting the attacked e4 pawn. Black has set up a solid
defensive wall and it's up to Kasparov to find a way through. 26.Qc5+
Activating the queen with check, forcing the black king back. This move
also pins the bishop against the queen.
[26.Qc3 Many expected this move, offering to exchange the queens and
driving the black queen from her excellent central post. X3D Fritz
definitely wouldn't exchange queens because then Kasparov's material
advantage would be close to crushing. X3D Fritz needs the powerful queen
on the board to keep counterchances. 26...Qd6]
26...Kg8 27.Rgf1 (D5)
 
Threatening the brutally blunt capture Rxf7, taking advantage of the pin
on the bishop. This move was criticized by several of the assembled
Grandmasters as "too subtle." Black's reaction develops a piece and
White's threat is easily parried. The more direct 27.Rd1 was more to the
point.
27...Rb8 Answering Kasparov's threat with an even stronger one. X3D
Fritz threatens a lethal capture on b2. 28.R1f2 Protecting b2 and so
reviving the threat to capture on f7.
28...Qc7 Removing the pin on the bishop and so threatening to capture
the unprotected a2 pawn.
29.Rc2 Kasparov prefers to answer a threat with a counter-threat instead
of playing defense. Now if Black plays ..Rb5 Kasparov exploits the new
pin on the c-pawn and captures the rook with Qxb5. [29.Kb1 Protecting
the a2 pawn with the king.]
29...Qd7 [29...Bxa2 Grabbing the pawn immediately was playable, but now
White's rooks get a lot of play.; 29...Rb5?? 30.Qxb5!] 30.h4 Another
aggressive surprise from Kasparov. Just when all the action was on the
queenside and in the center, he threatens to open a new front by pushing
his kingside pawns against the black king. 30...Qd8 31.g5?! (D6)
 
This move made X3D Fritz very happy, at least according to its
evaluation function. It now considers it safe to capture the hanging
pawn on a2. Kasparov wants to play h5 without allowing Black to block
his pawns with ..h6. But this plan is just to slow and now X3D Fritz
grabs a pawn on a2.
[31.h5 This push instead of g5 wouldn't have given X3D Fritz time to
capture on a2 because of the threat of h6. 31...Bxa2? (31...h6) 32.h6]
31...Bxa2! A surprise for Kasparov. Perhaps that pawn had sat there
immune for so long that Kasparov started to believe it couldn't be
captured! Not only does Black win a pawn but suddenly White's king is
feeling a draft.
32.Rxe4 Almost a draw offer since it is now very hard for White to find
any move to avoid the repetition that does indeed end the game. [32.Rd2
This move was expected by most commentators. It pushes the black queen
off the d-file and claims it for White. Then Kasparov could continue his
kingside push. 32...Qe8 33.h5] 32...Qd3 (D7)
 
Bringing the queen to a dominating position and creating threats around
the white king. 33.Rd4 Giving up another pawn in order to remove the
worst of the black threats.
33...Qxe3+ X3D Fritz alarmed the commentators by spending eight minutes
on this obvious and forced move. Seirawan, Ashley, and Hoffman wondered
if there was a malfunction!
Nothing of the sort. X3D Fritz had plenty of extra time, so it was in no
hurry. It had started to see the repetition draw that now comes and when
a decisive result comes into its analysis horizon the program gives
itself more time.
34.Rcd2 The only move.
[34.Rdd2?? Rxb2! Whoops, giving up the queen but getting checkmate in
return! A fine illustration of the dangers around White's king. 35.Qxe3
(35.Rxb2 Qxc5+; 35.Kxb2 Qb3+ 36.Ka1 Qb1#) 35...Rb1# Checkmate!; 34.Kd1??
Re8]
34...Qe1+ Black is in considerable danger as well. Not only does
Kasparov have a material advantage, but the black king is not safe.
35.Rd1 The only move. The open white king, hemmed in by the bishop on
a2, is too vulnerable. [35.Kc2?? Bb1+ 36.Kc3 Qc1+ 37.Rc2 Qxc2#]
35...Qe3+ The first repetition of the position. If the same position is
about to appear on the board for the third time, the player can claim a
draw by repetition. We call the version here a "perpetual check."
36.R1d2 The other moves are suicidal. Kasparov has no choice but to
accept the perpetual check draw if X3D Fritz wants it. [36.Kc2?? Qb3+
37.Kd2 Qxb2+; 36.R4d2?? Qxc5+]
36...Qg1+ This was the last fork in the road. X3D Fritz could have
continued the game with ..Re8. The machine decides that there is no way
to play for a win and forces the repetition draw. [36...Re8 Black can
keep the game going this way, but it was very risky and without any
advantage. 37.Qc3; 36...Qe8? 37.Rd7] 37.Rd1 1/2-1/2 (D8)
 
Now the draw is completely forced because the black queen has no
alternative to checking on e3 again and creating a third repetition.
Any other move loses immediately. White is threatening to win instantly
with Rd8+. So going to g1 for check instead of back to e1 was just a
show of computer humor, if you will! The result is the same: draw.
A rich and exciting battle with chances on both sides and unexpected
play from the beginning.
– Mig Greengard
-- 
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 Ciao.. Ruggero
Secondo me ormai la cosa e' molto semplice . Contro i computer secondo 
me , kasparov sa' bene se e' in grado di batterli o meno . 
Dove tutto ormai ruota attorno ai soldi e all' immagine ( = sponsor = 
altri soldi ) .. , chi si stupirebbe se i creatori di questa strampalata 
X3D si fossero accordati con Kaspa per un risultato di comodo per 
entrambi ?? 
In fondo sarebbe anche semplice .
 Tu giochi contro il mio ultimo giocattolo fantascientico , .. 
ancheggi ..giochicchi ..sbuffi ..fai l'espressione pensierosa ... e poi 
patteggi o vinci o perdi di misura . Quindi , vai alla conferenza 
allestita per l'occasione e distribuisci a pioggia commenti positivi sul 
giocattolino 3D facendo palesemente capire che commercialmente potrebbe 
essere una buona cosa .
 Morale : tutti ci guadagnano , Kasparov intasca il lauto malloppo e l' 
x3D ne esce con una buona immagine da lanciare sul mercato ( in un 
futuro molto piu' vicino di quanto possiamo immaginare  e i creatori 
del " tagliaerbe " gia' si stan fregando le mani  )  . 
Insomma una ottima operazione commerciale dove nessuno va' in rosso , 
nessuno sfigura e tutti mangiano la torta , mentre gli scacchisti 
mangiano la foglia continuando a farsi domande che non hanno poi molto 
senso .
E' la mia opinione . 
Ciao 
Inviato da 
www.mynewsgate.net

 entrambi ??
State scoprendo l'acqua calda :-)))
niubbo.

 niubbo. 
Parsifal :  guarda Niubbo che c'e' qualcuno che ancora crede che certe 
esibizioni-farsa , siano serie :-P
Inviato da 
www.mynewsgate.net

 esibizioni-farsa , siano serie :-P
Ops! allora fai conto che quello che ho scritto non sia mai esistito
:-PPPPPP
niubbo.


Ehi!! Ma qui si parla di diverse aperture, diverse posizioni, e soprattutto
di un....gambetto solo!
Ah ah ah ah ah !!!
Massimo Paolini

entrambi ?? 
Io invece non credo che ci sia un compione scritto come sembri
alludere tu. Credo anche che la semplice esistenza di programmi forti
sia "doloroso" per qualche scacchista della vecchia guardia.
Non entro nel merito se questi abbiano ragione o no, il fatto e' che
questi programmi esistono, ignorarli e' come mettere la testa nella
sabbia.
Secondo me gli umani piu' forti hanno ancora un certo vantaggio 
sui programmi piu' forti, ma e' piccolo e devono stare cmq sul chi 
vive, soprattutto se giocano per vincere