Red infringes rule 18.2(b)
and will be penalized. Red, the windward outside boat was obligated to keep
clear under rule 11 and shall give mark-room
under rule 18.2(b).
Blue’s gybe was part of her proper course at the mark and required by
rule 18.4. Blue infringed
rule 10 when gybed to port
but is exonerated by rule
21.