Dmitriy Ivanovich Mendeleev (1834-1907) is best known for devising the Periodic Table of Chemical Elements.He loved to play chess, among other games, and correspondence chess too. A beautiful but hard chess problem follows from him from July 4, 1889, white mates in two:
2Bn2b1/2b5/7Q/3kpN2/
1Rr1N3/3p2PK/8/8 w - - 0 1
White mates in two!