At 3 boat lengths Blue is overlapped inside Yellow on a course directly to the mark. At position 2, Blue heads up slightly to make more room to make a tactical rounding. At position 4 as Blue heads down to gybe Yellow heads up to pass head to wind and tack. At position 6 Yellow hails, “I NEED ROOM!” and Blue hails, “NO ROOM!” At position 7 there is contact between Yellow and Blue and Yellow hits the mark. There is no damage or injury as a result of the contact.

1. At Position 1 who is entitled to mark-room?
2. At Position 6 who is entitled to mark-room?
3. At Position 7 what rule(s) does Blue break?
4. At Position 7 what rule(s) does Yellow break?
5. Who should be DSQ: Yellow, Blue, Neither, Both?