The logic behind the sequential albino is worth noting: 1.cxb3 is practically forced. Then 2.bxc3 is necessary, as 3.bxc4? or…
White AUW was one of the easier themes I think in Circe, Anticirce and Madrasi. But as Widlert points out,…
There are at last a dozen white AUWs in AntiCirce #2, both more economical and more unified than this, but…
Yes it is C+ only Winchloe with black pawn on f7 instead of g7 SL
Agreed! I was referring to: 1.Ke6-d7 2.Kd7*d8[+nPd7] 3.Kd8-e7 1.nPd7-d8=nR 2.nRd8*e8[+nPd8=nQ] #
Sorry, please ignore my earlier post. The nPe8 is a captured black pawn, which would not promote on e8!
There is at least one cook that can't be fixed: in the second solution 6.Bxd7(+nPe8=nQ) works just as well.
Nice series problem Vlaicu! The diagram seems incorrect, though. It is C+ Popeye v4.61 with bPg7->f7. With bPf7 the "cook"…
Those who are not familiar with Invisibles are advised to consult the result of the 9th Japanese Sake Tourney: http://ubp.org.br/wccc2009/composing/Sake_Tourney.pdf…
Thanks, the difference between capturing and non-capturing moves by I is indeed stated in the definition. However, drawing a solver's…