Ultimate tictactoe: mini_board_full check with the same condition

[ButterflyEA]

Hi,
Im not sure if its correct but in the line that check if the mini board is full on line 211:
if board[board_idx][i][j][0] == 0 && board[board_idx][i][j][0] == 0 {
return false;
}
its looks that the check is with the same condition, did you meant the second to with player 1?