[Retros] Pawn to-the-8th, single checkmates, simplified ed.
mri_two at t-online.de
Fri Dec 15 00:37:38 EST 2006
> (1-1) promoted to Knight
> 1.d4 c5 2.dxc5 d5 3.Qd4 Be6 4.Qf6 d4 5.Kd2 d3 6.Kc3 d2
> 7.b4 d1N# (Olli Heimo & Gianni Donati 1996)
This can be done faster:
(rnb1kbnr/pp1ppppp/8/q7/3P4/1P6/PKP1PPPP/RNBn1BNR SPG 6.0
works too, but I like the first more).
Same idea for Pe2-e1=N#
> (1-4') Queening is MUST(underpromotion is insufficient)
Has somebody encountered the opposite situation:
Underpromotion is MUST, while queening leads to
a non-unique PG?
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