Red must keep clear in accordance with rule 10 (boats on opposite tacks) and passes in front of the Blue. Blue bears away. But there seems to be no need for taking avoiding action, especially not in this hard way. Therefore Red's course was acceptable, the protest will be disallowed, and no boat will be penalized. See also Case 50. But Red (port) is taking a great risk by crossing so close in front of Blue (starboard).