But it is not mate in 9 is it. Better sort that out.
I got the problem from Murray's 'A History of Chess'
(even the medieval ages my endgame was crap!)
In Berlin in 1914 Capablanca beat Lasker 6½-3.½ in a rapid-transit match,
(something akin to blitz or 5 minute chess) one of the games (as yet no score)
produced a position so interesting that the two of them tweaked it a bit and
together composed that study. That is the position on the Cuban 1988 stamp.