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MatPlus.Net Forum General Fourfold line interference
 
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(1) Posted by Hauke Reddmann [Wednesday, Dec 12, 2012 17:06]

Fourfold line interference


If there are two white and one black piece on a line,
a capture in the line may lead to a pin mate.
(matrix: Ba1 Nb2 Pc3 - Qd4 Ke5, Qxc3 Nc4#)
Likewise, if there are two black and one white, by withdrawal
(matrix: Ba1 Nb2 - Pc3 Qd4 Ke5, Pc2 Nc4#)

Consequently, a 2# try theme would be a bad interference for
the 4th time. (In the example matrix, there is no space :-)

Do you have an offhand example (before I pester Udo as usual or
construct it myself)? Maybe it even has a theme name?

Hauke
 
(Read Only)pid=9266
(2) Posted by Hauke Reddmann [Monday, Feb 7, 2022 20:18]

I'm in thread exhuming mode and have the files ready:

Udo Degener, Hauke Reddmann, Troll 2015
(= 8+5 )

1.Sh6? Td5! 1.Sf6? Sd5! 1.Se7!
 
(Read Only)pid=22250

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MatPlus.Net Forum General Fourfold line interference