I am trying to check for a win in a connect 4 game, I managed to check diagonall right, But I need help with checking diagonally left, vertically and horizontally, Its a matter of changing the algorithm I have already created and tweaking it. How do you check vertically, horizontally and diagonally left?

```
public class Game {

    private static final int COLS = 7;
    private static final int ROWS = 6;
    public State[][] count = new State[COLS][ROWS];
    boolean player1Turn = true;
    public static final int LEN = 4;
    protected Context context;

    public enum State {
        RED, YELLOW, BLANK;
    }

    public State checkWinner() {
        for (int col = 0; col < count.length; ++col) {
            for (int row = 0; row < count[col].length; ++row) {
                State result = checkWinner(col, row);
                if (result != null) {
                    return result;
                }
            }
        }
        return null;
    }

    //This method is called in a another class 
    public State checkWinner(int col, int row) {
        State cell = count[col][row];
        if (cell == null || cell == State.BLANK) {
            return null;
        }

        // Here I am checking for a win Diagonally  Right
        // The next step is to check vertically and horizontelly and Diagnollly left
        // There needs to be a pattern of four reds or yellow counters either horizontelly or vertically 
        // My guess to check horizentally or vertically and diagonally left would be to copy this algorithm and possibly change the coordinates 
        // Checking four up for horizontal and four across for vertical, four for diagnoally left
        if ((col + LEN <= COLS) && (row + LEN <= ROWS)) {
            boolean same = true;
            for (int i = 1; i < LEN; ++i) {
                if (count[col + i][row + i] != cell) {
                    same = false;
                    break;
                }
            }
            if (same) {
                return cell;
            }
        }
        // TODO Auto-generated method stub
        return null;
    }
}

```