回複：ok, i see; you got it already. But you might want to put y

1st round:

i.e. if player A places ‘O‘ at location 100, must you place O at location 101/99? since -
" Whenever he puts an "O", I put an "O" next to it if I cannot find a win"

or-

shall you place S at location 200 i.e.? - since
"If he never put a "S" first, Then I watch for the last 7 consecutive empty spaces. Then I put a "S" on the 4th slot so that I can put a second "S" with two empty spaces in between."

or-

do you think I can place O at any location, but can still win the game?