Which preposition to use with morphy

with Occurrences 1%

The whole Academy, and especially the Lakerimmers, overwhelmed this second Paul Morphy with congratulations, and felt proud of him; but when he attempted to explain how he had won his magnificent battle, and started off with such words as these: "You will observe that I used the Zukertort opening"; and when he began to tell of his moves from VX to QZ, or some such place, even his best friends took to tall timber.

Which preposition to use with  morphy