int minX = -1;
        int maxX = -1;
        int minY = -1;
        int maxY = -1;
        int count = 0;

        for(int y = 0; y < colSize; y ++)
        {
                count = 0;
                for(int x = 0; x < rowSize; x ++)
                {
                        if(tab[y][x] == 0)
                        {
                                count ++;
                        }
                }
                if(count != rowSize)
                {
                        if(maxY == -1)  maxY = y;
                        else        minY = y;
                }
        }

        for(int x = 0; x < rowSize; x ++)
        {
                count = 0;
                for(int y = 0; y < colSize; y ++)
                {
                        if(tab[y][x] == 0)
                        {
                                count ++;
                        }
                }
                if(count != colSize)
                {
                        if(minX == -1)  minX = x;
                        else        maxX = x;
                }
        }

        if(minX == -1 && maxX == -1 && maxY == -1 && minY == -1)
        {
                tab = new int[size][size];
                rowSize = size;
                colSize = size;
                return true;
        }

        if(minX == 1 && maxX == size - 1 && maxY == 1 && minY == size - 1) return false;

        if(maxX == -1) maxX = minX;
        if(minY == -1) minY = maxY;

        int newRowSize = (maxX - minX) + 3;
        int newColSize = (minY - maxY) + 3;

        int [][] temptab = new int[newColSize][newRowSize];

        int oldX = minX;
        int oldY = maxY;

        for(int y = 1; y < newColSize - 1; y ++)
        {
                oldX = minX;
                for(int x = 1; x < newRowSize - 1; x ++)
                {
                        temptab[y][x] = tab[oldY][oldX];
                        oldX ++;
                }
        }

        tab = temptab;
        colSize = newColSize;
        rowSize = newRowSize;

        return true;