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MatPlus.Net Forum General Moscow/Chicco theme
 
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(1) Posted by Hauke Reddmann [Sunday, Nov 14, 2010 19:24]

Moscow/Chicco theme


For all that are either too young or have no dictionary handy:

Moscow/Chicco is a 2# theme. White threatens a double check.
The battery front piece aims on a unguarded field F. (At least
this is my definition which excludes the 5-variant setting
with a bQ interposing on both lines of the double check :-)
Black parries by interposing on the double check line by
a figure that also opens a guard line to F by line opening.
The parry introduces any error.

In the last SCHWALBE, P. Heyl showed 3 Moscow on the same field.
It seems that (except the setting I named - "64";Guljajew 1933)
not a single 5-variant problem exists. And even that has not
threat+5 variants but double threat and 4+1 differentiating.

Now Udo Degeners database knows much but not all. :-) Do you
know such a 5-variant problem? BTW, I immediately composed 4 Moscow
on the same field (SCHWALBE, submitted) so the theme not *that* hard.
(And if you ask "But Black has only 4 line figures" - think twice :-)

Hauke
 
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(2) Posted by Hauke Reddmann [Friday, Nov 19, 2010 11:40]

EDIT 19/11/10: Yes Virginia, there is a 5-variant
setting (with a lousy key, so I'm still working on it).

Hauke
 
 
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(3) Posted by Hauke Reddmann [Wednesday, Nov 24, 2010 15:28]

EDIT 24/11/10: With a bit of cheating*, 6 variants!
Eat my trousers! :P

Hauke

* The key is still lousy, but that's not the cheating
part, which consists of three 2nd deg corrections on the
same field, with identical mate.
 
 
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MatPlus.Net Forum General Moscow/Chicco theme