Which preposition to use with charades

in Occurrences 3%

"Where is Mrs. McLean?" asked Mary Purcell at the door, after the charade in which she had been engaged was concluded.

of Occurrences 2%

But every man may thus be regarded as a charade of many syllables, of which he himself can spell only a few, while others easily decipher the whole word.

on Occurrences 2%

BARNARD, Rev. Dr., Dean of Derry, afterwards Bishop of Killaloe, arbitrary power, in favour of, iii. 84, n. 1; Johnson's charade on him, iv. 195; double-edged wit, ii. 307; draws up a Round-Robin to, iii. 84; and Garrick coming up to London, i. 101, n. 1; regard for him, iv.

to Occurrences 1%

He praised Harriet as a beautiful girl, congratulated Emma on the improvement she had wrought in her, contributed a charade to Harriet's riddle-book, and took a most animated interest in a portrait which Emma began to paint of her.

Which preposition to use with  charades