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MatPlus.Net Forum General Two-motive parry in 2#
 
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(1) Posted by Hauke Reddmann [Saturday, May 19, 2012 14:21]; edited by Hauke Reddmann [12-05-21]

Two-motive parry in 2#


Which are the themes that *necessarily* need two black parry motifs
(against a single threat, of course!) ?

Führer - line-opening + unpin
Chicco/Moskau - line-closing a doublecheck line + line-opening
Ekström - line-closing a doublecheck line + unpin

OK, I'm only up to letter "L" in Udo Degeners #2 primer, but I doubt there
is much left:

Unclean Flight: Unblock + line-closure. I think anyone will see this
either as an unclean unblock or an unclean line-closure, instead of a theme :-)

Doublecheck Flight: Black flight out of a double-check, K opens line
to fend off the remaining check.

Do you have more ideas?

(EDIT: I mainly asked because I saw a possibility to get a necessary
three motive parry, Führer+Moskau+Ekström, and did a problem with that myself,
but as always, people weren't from yesterday 70 years ago:
http://www.yacpdb.org/?id=179356 )

Hauke
 
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MatPlus.Net Forum General Two-motive parry in 2#