hasWinner() seems to be broken

[AlexaLempel]

Placing a piece that connects lines of three pieces of the same color with a line of two pieces of that same color aren’t flagged as victories. See screen captures below for example.

[AlexaLempel]

I first noticed it in the course of regular play, where the AI failed to defend against my impending six-in-a-row, and then the game failed to register it as a win.