1/11/2012 – This month in Chess Cafe Steven B. Dowd
is reviewing ChessBase DVDs that "show the power of original ideas in chess,
their categorization, and learning how strong players formulate
and classify these ideas will make you a better player." In the current
review he looks at Ari Ziegler's DVD, which gets only four stars ("good")
because of certain shortcomings, but actually deserves six.
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€49.90
Ari
Ziegler – Exchange sacrifice
By Steven B. Dowd
The Art of the Exchange Sacrifice (DVD), Ari Ziegler, ChessBase, Playing
Time: 6 hours 40 minutes $31.95 (ChessCafe Price: $27.95)
I was very excited at the prospect of learning more about that most diffuse
of sacrifices, the exchange sacrifice. I love such sacrifices because of the
unbalanced positions they provide, as well as the opportunity to play a "beautiful"
game. The package insert promises that you will, "seriously enhance your
understanding of exchange sacrifices, very quickly recognize the value of an
exchange sacrifice in any kind of position, your games will be richer and you
will see more opportunities and because of that you will improve your overall
results, and you will reach a better understanding of the games of world class
players."
The author notes that this is a DVD for "chess lovers," and that
only a true chess lover would buy a DVD on the exchange sacrifice. Ziegler succeeds
with flying colors in developing a classification of when the exchange sacrifice
works in various settings. Exchange sacrifices work in diverse positions and
have diverse goals. Sometimes you sacrifice the exchange for mating possibilities,
but just as often it can be a strategy to give you a strong outpost piece in
the middlegame, or as a means to an endgame advantage by sacrificing the exchange
for a minor piece and a pawn.
There are thirty sections to his taxonomy, from defensive sacrifices to build
a fortress (the DVD uses the unfortunate term "to build a castle,"
which might be misinterpreted by some) or secure a technical draw, getting strong
outpost pieces on e6/d6 or d3/e3, sacrifices on squares such as f6 or c3 to
weaken the squares around the king, for central domination, getting the bishop-pair
plus one pawn against rook plus bishop with weaknesses on the squares that would
be protected by the missing bishop, and so on. He obviously has been collecting
these for a good many years, and he knows his material.
However, some of the games are misplaced. For example, the very strong exchange
sacrifice made by Kasparov against Yusupov, 1989, is classified under "Sacrifice
on f6 in order to weaken the squares around the castled king." Well, in
this game Kasparov sacrificed an exchange on e8 to a white bishop on h5, which
lead to fatal f3 weaknesses, so it does qualify as a sacrifice that weakened
the f3-square, but that is not where the sacrifice occurred. Certainly some
viewers would find this distracting and confusing.
My favorites were the various endgame sacrifices, especially the following,
since it looks like a study. It falls under the heading "sacrificing the
exchange to get a pawn to the seventh rank."
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Replay and check the LiveBook here
Please, wait...
1.e4Nf62.e5Nd53.d4d64.Nf3Bg45.Be2e66.h3Bh57.0-0Be78.c4Nb69.Nc30-010.Be3d511.b3dxc412.bxc4Nc613.Rb1Bxf314.Bxf3Nxc415.Rxb7N6a516.Rb1Rb817.Qa4c618.Ne4Nb219.Qc2Nac420.Rxb2Nxb221.Rb1Nc422.Rxb8Nxe323.Rxd8Nxc224.Rd7Bd825.Bd1Na326.Rxa7Nb527.Rd7Bb628.a4Nxd429.a5Rd8Here your silicon monster will probably tell
you that the mundane 30.Rxd8+ is best, followed by pushing the pawn to a6,
leading to a white advantage. That may well be the case, but this is a game
between humans, with the clock ticking, and Ljubojevic was always one to
pursue the unbalancing option. I've looked a bit at that ending, though, and
found it hard - it would take a long time, anyway - to find the win. My own
silicon monsters find the initial position dead even at 0.00 after the
sacrifice; I am convinced they are wrong.30.axb6Rxd731.Nc5Rd832.b7
The threat now is Nd7, Ziegler notes. Compared to exchanging rooks, Black's
defensive task is much more difficult and difficult to find, if there even is
a defense.Rb833.f4f634.Kf2fxe535.fxe5Kf736.g4Ke7Ziegler
indicates the best defense here is36...Nb5where White must be careful,
since only37.Ba4!works. Black can only shuffle pieces around and push
his kingside pawns until he gets into zugzwang and must allow the white king
to infiltrate on the queenside.If37.Bf3thenNd4and then if38.Be4Black happily pulls what Ziegler calls "an important trick":Nb3!and on39.Nxb3Rxb7when the passed pawn is gone and "the clumsy rook" has the
freedom it needs to defend - not that White has any real threats anymore.37.Ke3Nb538.Bf3Only this gives a clear win:38.Ba4allowsKd8!
and a potential defense to White's threats.38...Na339.Kd3Rd8+40.Kc3Nb5+41.Kb4Nd442.Be4Rb843.Kc4Nb544.Bxc6Nc745.Kb4Nd5+46.Bxd5exd547.Kc31–0
Ziegler comes across as a sympathetic character, but he is a terrible presenter.
Another weakness of this DVD is the written notes accompanying the games. Some
are in poor English with multiple misspellings (whereas others are well-done
without mistakes), some are in German, and some are in Swedish! This appears
to be a lack of editorial quality control by ChessBase.
The material in terms of its attempt at a first taxonomy of the exchange sacrifice
deserves six stars. The author's analysis is usually quite good, although it
does lapse at times into the superficial. His ideas deserve a full six stars
as well. But given his poor presentation skills, and the editorial gaffs, this
brings the rating down considerably. Still, if you are one of those "chess
lovers" who wants to learn more about the elusive exchange sacrifice, you
will want this DVD. My hope is that the author expands on his material; it would
be enough to fill a good-sized book and would provide for easier reference.
My assessment of this product: Good (four out of six stars)
Sampler from Ari Ziegler: Art of the Exchange Sacrifice
Born in 1966, Ari Ziegler is a Swedish international master. In his homeland
Ziegler has an excellent reputation as a theoretician. In 2004, together with
Jacob Aagaard and John Shaw, he founded the publishing house Quality Chess,
which rapidly earned an excellent reputation on the chess scene. In 2007 Ziegler
left the firm in order to become president of the Swedish Chess Federation.
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