Benko's three-mover that stumped Fischer In Christian Hesse's book The Joy of Chess one reads about a mate-in-3 problem composed by Pál Benkö that stumped Bobby Fischer.  Hesse gives the following diagram:

[FEN "8/8/8/4k3/8/8/8/2BQKB2 w - - 0 1"]


On the other hand, on ChessBase a slightly different diagram is given:

[FEN "8/8/8/8/4k3/8/8/2BQKB2 w - - 0 1"]


Curiously, both of these positions are valid three-movers with the same key move!  But which one is Benkö's actual composition?
You can find this chess problem 

[FEN "8/8/8/8/4k3/8/8/2BQKB2 w - - 0 1"]


on page 582 of Pal Benko's book "My Life, Games and Compositions" 2003 ISBN:1-890085-08-1 which also states it was first published in "Chess life" in 1968, so ChessBase is correct.