Judgment unanimously reversed on the law and indictment dismissed. Memorandum: Defendant appeals from a judgment convicting him of one count each of rape in the first degree and assault in the second degree; he was acquitted of six counts of rape in the first degree and two counts of sodomy. Defendant’s rape conviction must be reversed. Defendant was indicted on seven identical counts of rape by forcible compulsion, the complainant testified at trial that nine acts of rape occurred, and the jury convicted him of only the seventh count of rape. It is impossible to ascertain what alleged act of rape was found by the jury to have occurred, whether it was one of the seven for which he was indicted, or indeed whether different jurors convicted defendant based on different acts. Reversal is required because the jury may have convicted defendant of an unindicted rape, resulting in the usurpation by the prosecutor of the exclusive power of the Grand Jury to determine the charges (see, People v Grega,
