most recent no-hitter
... that the most recent no-hitter by Pittsburgh Pirates pitchers went into extra innings and concluded with a pinch-hit walk-off home run?
... that the <b id="mwFLc"><a href="./List_of_Pittsburgh_Pirates_no-hitters" id="mwFLg" rel="mw:WikiLink" title="List of Pittsburgh Pirates no-hitters">most recent no-hitter</a></b> by <a href="./Pittsburgh_Pirates" id="mwFLk" rel="mw:WikiLink" title="Pittsburgh Pirates">Pittsburgh Pirates</a> pitchers went into <a href="./Extra_innings" id="mwFLo" rel="mw:WikiLink" title="Extra innings">extra innings</a> and concluded with a <a href="./Pinch_hitter" id="mwFLs" rel="mw:WikiLink" title="Pinch hitter">pinch-hit</a> <a href="./Walk-off_home_run" id="mwFLw" rel="mw:WikiLink" title="Walk-off home run">walk-off home run</a>?