Could the Russian fleet have done something different at the second battle of Svensksund?
Short answerNot much at sea: withdrawal was sensible, while a blockade and land attack might have been the only promising alternative to forcing the narrow channels.
NotesThe fleets were too evenly matched for Russia to overwhelm the Swedish position through restricted water. Even shallow craft had little room to maneuver or develop an attack. A blockade combined with troops landed nearby might have pressured the defense from land, but Russia did not attempt that alternative.