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MatPlus.Net Forum General Seriesproblems where White does nothing
 
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(1) Posted by Sarah Hornecker [Saturday, Jun 11, 2016 20:23]; edited by Sarah Hornecker [16-06-11]

Seriesproblems where White does nothing


Does someone know a term for when in a (series-?)problem White does nothing [other than Switchback, obviously]? I mean, he makes a couple of moves but in the end has the same position as at the beginning.
Bonus points if castling is involved. :-)

In selfmates it is called the Weber type, and in orthodox problems it is called "zugwechsel".

Example (original), created in a few minutes (EDIT: Position corrected):
(= 6+5 )

ser-r#2
Promotion to dummy pawn allowed

1.a8P? 2.???
1.a8S/B/R/Q? 2.Sb6/Bc6/R:a6/Qc6,Q:a6 mate
1.S:a3? 2.Sb1 and Black has no mate
1.Qb2? 2.Q:a3 mate
1.Qc3? 2.Qa5,Qb4,Qc6 mate
1.Qe5? 2.Qa5 mate
1.Qf6? 2.Q:a6,Qc6 mate
1.Qg7? 2.Qd7 mate
1.Qh8! 2.Qa1! B:b3 mate


And while you're here anyway, please post further examples (fairy chess welcome!).
 
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(2) Posted by Olaf Jenkner [Saturday, Jun 11, 2016 22:17]

What about 1. Qh8 2. Sc3# ?
Or 1. Sc3# ?
 
 
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(3) Posted by Sarah Hornecker [Saturday, Jun 11, 2016 22:26]

Oops, I had Pa5 on a6 first but then thought it is better on a5 to make some lines better. I will correct the OP.
 
 
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(4) Posted by seetharaman kalyan [Sunday, Jun 12, 2016 08:38]

Well... it has to be series reflexmate or series reflexstalemate. It has to be a switchback. I wonder if better term than 'silly problem' can be found.
 
 
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(5) Posted by Sarah Hornecker [Sunday, Jun 12, 2016 13:55]

I can imagine that it works nice if the pawn is the piece that eventually returns.
 
 
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MatPlus.Net Forum General Seriesproblems where White does nothing