Code to check if tic tac toe game has been won

gistfile1.txt

// See tic tac toe by Lenli https://github.com/lenli/tictactoe

-(BOOL)isGameOver {
    NSArray *winCombinations = [[NSArray alloc] initWithObjects:    @[@1,@2,@3], @[@4,@5,@6], @[@7,@8,@9],
                                @[@1,@4,@7], @[@2,@5,@8], @[@3,@6,@9],
                                @[@1,@5,@9], @[@3,@5,@7], nil];
    
    for (NSArray *winCombination in winCombinations) {
        BOOL isWinner = TRUE;
        for (NSNumber *winIndex in winCombination) {
            NSInteger winIndexInteger = [winIndex integerValue]-1;
            if ([self.boardPlays[winIndexInteger] isEqualToString:self.currentTurn]) {
                isWinner = FALSE;
            }
        }
        if (isWinner == TRUE) return TRUE;
    }
    
    return FALSE;
}