[Retros] Pawn to-the-8th-rank mates

Nicolas.Dupont at math.univ-lille1.fr Nicolas.Dupont at math.univ-lille1.fr
Sat Dec 9 23:59:00 EST 2006

Dear Andrew and all,

> Very

> possible that faster versions still yet exist, especially the N one...

> Nnb3n1/1pkpQp1r/p1p5/8/8/8/P1P1PPPP/RNB1KBNR

> SPG 9.5

You're right, as shown below :

1.Pc2-c3 Pb7-b5 2.Dd1-a4 Pb5-b4 3.Da4xa7 Pb4-b3
4.Da7-e3 Ta8-a5 5.Pa2-a4 Fc8-a6 6.Ta1-a2 Pb3xa2
7.Re1-d1 Fa6xe2 8.Rd1-c2 Pa2-a1=C

The goal of my previous mails was only to indicate some solutions where
Hiro's list was empty. Of course, the main point is now to find the
shorter one in each category. I think that the above 8.0 is difficult to


More information about the Retros mailing list