public TableroCircular(int numRadius) {
		tablero = new int[numRadius][];
		for (int i=0;i<numRadius;i++) {
			if (i==0) {
				tablero[i] = new int[1];
			}
			else if (i==1) {
				tablero[i] = new int[6];
			}
			else {
				tablero[i] = new int[tablero[i-1].length+6];
			}
			for (int j=0;j<tablero[i].length;j++) {
				tablero[i][j] = ColorHama.NO_COLOR;
			}
		}
	}