[Retros] Task

[Noam Elkies]

I wrote:

" > Rook without capture : 9 moves (Itamar Faybish)

" This at least is not optimal:

" 1 f3 h5 2 Kf2 h4 3 Qe1 h3 4 Kg3 Nf6 5 Qf2 Rg8 6 Kh4 Se4 7 g3 f5 8 Qg2 Rh8#

" (C+ Popeye very quickly), and one can probably go below 8.0
" with some more effort.

Indeed here's one in 7.5 (C+ Popeye in <1 sec.):

 1 h4 e6  2 h5 Qh4  3 h6 Qe4  4 f4 f6  5 Nf3 Kf7  6 Rg1 Kg6  7 Ne5+ Kh5  8 Rh1#

--Noam D. Elkies