That is exactly the point. All 4 of his original ships were still afloat and in his possession, 2 of my original four have been struck; yet the score was 22-17 in my favour!!!
He had captured one of mine, and I sunk it while it was in his possession. It should still count on his scoreboard, as I should not lead at this point of the game!
As the values of my 2 ships was 17 and 22, he should lead by 39 points. So if I am awarded 22 points for sinking my ship that he had captured, it should not deduct 44 points from his score while simultaneously awarding me 22 - that is a 66 point swing in my favour. Yes, I effectively scored triple points for the striking of the Formidable!!!!