Lion endgame study
In article ,
Glenn C. Rhoads wrote:
Daniel VanArsdale wrote in message
...
The Lion (L) moves on the lines a Queen moves, except that it
must first vault over a piece of either color to move on the
line just beyond. Unlike the Grasshopper, it may continue
on this line for as long as there are vacant squares, or until
it captures an opposing piece.
White draws.
White (3): Kg8, Ld1, Pd7
Black (2): Ke7, Ph6.
1. d8=Q+! Kxd8
2. Kf7 h5
3. Ke6 h4
4. Kd5+ Kany
5. Ke4 and the King catches the h-pawn
This works, and is probably the intended solution.
White can also end with 5 Kd4 h3 6 Ld5 h2 7 Ke4 and the Lion
catches the pawn, and likewise 4 Ke5 h3 5 Kd4+ K-any 6 Ld5 etc.
This conclusion can also be reached via 1 Kg7(h7) h5 2 Kg6 h4
3 Kf5 h3 4 Ke4 h2 5 Kd3(d4) Kd8 (or h1Q 6 d8Q+, drawn)
6 Ld5+! K:d7 7 Ke4. [And then there are the minor cooks
1 d8R, 1 d8B+, 1 d8N -- or even 1 d8L, according to the convention
that if there's a Lion -- or other unorthodox piece -- on the board
then pawns may promote to a piece of the same kind, as well as
the orthodox Q/R/B/N.]
Noam D. Elkies
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