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MatPlus.Net Forum Twomovers A question regarding the Tailcut Theme
 
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(1) Posted by Ian Shanahan [Monday, Dec 31, 2012 14:37]

A question regarding the Tailcut Theme


To the best of my knowledge, this theme was discovered by Rev. Noel Bonavia-Hunt (during the late 1940s - early 1950s) while he was compiling his well-known Research Pamphlets.* Two beautiful examples by Arthur R. Gooderson can be found in the PDB (P1030076) and YACPDB (206600). The basic idea is this:

Scheme
(= 4+5 )


The key is played. White threatens mate by 2.Qe5#, leaving the bQ pinned by the wRa4. But Black can defeat this threat by 'cutting the tail' of what is actually a masked battery, prospectively unpinning the bQ indirectly - 1...Sb4. This constitutes the Tailcut Theme.

Question: If wRa4 were moved to b4, would 1...Sxb4 still be regarded as showing the Tailcut Theme (being a capture and not a line-closure)?

* http://books.google.com.au/books/about/The_Tail_cut_Unpin_Theme_in_the_Two_move.html?id=qf-otwAACAAJ&redir_esc=y

http://books.google.com.au/books/about/Supplementary_Examples_of_the_Tail_cut_U.html?id=087QtgAACAAJ&redir_esc=y

http://books.google.com.au/books/about/Further_Examples_and_Modes_of_the_Tail_c.html?id=SoXZtgAACAAJ&redir_esc=y

@Milan & Kari: Please include this theme in the 2nd Edition of your fantastic Encyclopedia!
 
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MatPlus.Net Forum Twomovers A question regarding the Tailcut Theme