[Retros] 'Tis the season...
Noam Elkies
elkies at math.harvard.edu
Sun Dec 30 13:33:11 EST 2007
Yet another variation (no Arabian Nights this time):
...................
: . _ . _ . _ . _ :
: _ . _ . _ . _ . :
: . _ . _ . _ . _ :
: _ . _ . P . _ . :
: P _ . _ . _ Q _ :
: _ . _ P B . R . :
: . P P _ . P P P :
: _ N _ B _ K N R :
:.................:
Noam D. Elkies, 30.xii.07
How many minimal sequences?
Happy New Year,
--NDE
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