// Relative advantage for c with given board
func advantage(c *client.Client, b game.Board) int {
black, white := b.Score()
diff := black - white
if c.Color() == game.White {
diff = -diff
}
return diff
}
func score(c *client.Client) (black, white int) {
black, white = c.State().Score()
black += c.BlackStones().Captured
white += c.WhiteStones().Captured
return
}