[Retros] Baibikov, Caillaud... and Plaksin!!

CAILLAUDM at aol.com CAILLAUDM at aol.com
Thu Dec 28 07:05:34 EST 2006


In Nikita Plaksin's work, we can also find an example with a long walk by
the King motivated by a retroscreen. He used this matrix in several problems,
but maybe the following is the best with an additional retroscreen on h file.

Nikita Plaksin, problem 1979
-1 & =

White retracts 0-0 and claims the draw!

Some remarks :
-This is also an example where retracting 0-0 is illegal under "Codex Pula",
but is OK under "Codex FIDE"; black didnt claim the draw before his last
move : of course, he would have been a fool as he had a winning position! (why
he didn't mate in one is another question...).
-The choice of this presentation rather than Ke1, Rh1 and stipulation "Draw"
with key 1.0-0 is presumably that the draw has to be claimed BEFORE the move
is played.


Dans un e-mail daté du 24/12/2006 15:21:10 Europe de l'Ouest,
Pastmaker at aol.com a écrit :

With some trepidation I bring up the subject again, to correct an uninformed
remark I made earlier.

The Baibikov problem is referred to (Orbit, July 2004) is certainly
brilliant, but I was not entirely correct in saying that it was a "new way" to
demonstrate a 50-move draw.

Thanks to better-informed colleagues, I have been apprised of a wonderful
earlier problem by Michel Caillaud (who else?) that appeared as R121
Probleemblad 2001 [rb2k3/2p2p1K/1B6/1RPP1PP1/B1Prbrp1/1Prp1p2/2p2P2/N7 h#2 (12,13)].
This composition uses the technique of having one King screen for the other
King on each side of an exterior rank, with a lengthy journey around a
central blockade that requires enough moves for the 50-move rule. (There are also
some great retroscreens, which I, for some reason, particularly enjoyed.)
Michel's penchant for having units execute lenghthy to and fro maneuvers should
be well known: if you haven't seen them yet, please see the "Tarzan of the
apes" 1st prize composition from StrateGems 1999 and another 1st Prize from
Strategems 2001, in which Michel indulges this habit with spectacular results.

Baibikov's position, however, demonstrates the maneuver without the help of
another "helpful" rule involved in Michel's composition and thus presents the
50-move task in a purer form.

Both are wonderful compositions.

Best wishes to all,
Tom Volet

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