2006 UK Championship snooker tournament
... that in the 2006 UK Championship snooker tournament, Ronnie O'Sullivan conceded his quarter-final match against Stephen Hendry while 4–1 frames behind in a best of 17 frames match?
... that in the <b id="mwBTE"><a href="./2006_UK_Championship" id="mwBTI" rel="mw:WikiLink" title="2006 UK Championship">2006 UK Championship snooker tournament</a></b>, <a href="./Ronnie_O'Sullivan" id="mwBTM" rel="mw:WikiLink" title="Ronnie O'Sullivan">Ronnie O'Sullivan</a> conceded his quarter-final match against <a href="./Stephen_Hendry" id="mwBTQ" rel="mw:WikiLink" title="Stephen Hendry">Stephen Hendry</a> while 4–1 <a href="./Glossary_of_cue_sports_terms#frame" id="mwBTU" rel="mw:WikiLink" title="Glossary of cue sports terms">frames</a> behind in a best of 17 frames match?