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MatPlus.Net Forum General A Challenge-7 Black Queens In A Selfmate
 
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(1) Posted by Rewan Demontay (Real Name: James Malcom) [Monday, Jun 15, 2020 19:37]; edited by Rewan Demontay (Real Name: James Malcom) [20-06-15]

A Challenge-7 Black Queens In A Selfmate


Awhile ago, I managed 6 Black queens in a selfmate-http://superproblem.ru/archive/probl/Sn/Malcom-s15-2020.gif

But 7 black queen promotions has eluded me ever since. Below is the best and only scheme I have personally found so far that has potentional.

s#17
(= 6+14 )


The ideal solution-1. Nc7 or similar b1=Q 2. Ra8 Qa1+ 3. Rxa1 c1=Q 4. Ra8 Qa1+ 5. Rxa1 d1=Q 6. Ra8 Qa1+ 7. Rxa1 e1=Q 8. Ra8 Qa1+ 9. Rxa1 f1=Q 10. Ra8 Qa1+ 11. Rxa1 g1=Q 12. Ra8 Qa1+ 13. Rxa1 h1=Q 14. Ra8 Qa1+ 15. Rxa1 Bd7 16. Ra8+ Bc8 17. Rxc8+ Ne8# (16... Be8 leads to duals, but I think it is acceptable on the last move of such a monumental task.)


Who here can achieve it? I offer co-creation on my scheme, but I highly encourage you to try and make your own. If you do not wish to post here, my email-rewandemontay@gmail.com. In the event that you manage to create it and publish it elsewhere, please share it here when you can.
 
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MatPlus.Net Forum General A Challenge-7 Black Queens In A Selfmate