The Science of Deduction

11 Feb 2012

Just got a text from Lestrade about a murder investigation at a university residence hall. Apparently, he doesn’t know I’m already here.
This one’ll be fun. A young university student was found dead in her room, with all the doors and windows locked and no signs of violence on the body or forced entry. Joan’s already upstairs, but I’m investigating the floor below. You never know what can get through the vents.
I’ll let you know when I’ve solved it. It’ll be soon.

Just got a text from Lestrade about a murder investigation at a university residence hall. Apparently, he doesn’t know I’m already here.

This one’ll be fun. A young university student was found dead in her room, with all the doors and windows locked and no signs of violence on the body or forced entry. Joan’s already upstairs, but I’m investigating the floor below. You never know what can get through the vents.

I’ll let you know when I’ve solved it. It’ll be soon.

29 Jan 2012

I feel in need of a challenge. Go on, try your hand. It’s impossible to stump me, but you’re gladly invited to try.

I feel in need of a challenge. Go on, try your hand. It’s impossible to stump me, but you’re gladly invited to try.

26 Jan 2012

BORED.

So. Very. Bored.

All of the cases I’ve had for the past month are pathetic. None of them are even remotely interesting. It’s just “Sherlock can you find this” or “Sherlock who killed him” or “Sherlock why is she dead.”

BORING. Why can’t there ever be some interesting murders for a change?

Hmph. Going to go continue the experiment on the human eyes in the microwave. They should be properly prepared by now.

-SH

19 Jan 2012

Any reports of my death have been greatly exaggerated. I don’t know why I keep getting messages asking if I’ve died. I’m certainly very alive. And who on earth is “Moriarty?”

13 Jan 2012

Anonymous asked: And another? Two convicts are locked in a cell. There is an unbarred window high up in the cell. No matter if they stand on the bed or one on top of the other they can't reach the window to escape. They then decide to tunnel out. However, they give up with the tunneling because it will take too long. Finally one of the convicts figures out how to escape from the cell. What is his plan? xxx

Ah, you’re doing slightly better today in your choice of riddles. This one is at least marginally interesting.

As I have said in the past, it is a capital mistake to theorize before one has data. Without any information about the door, the lock-picking skills of the convicts, nor the actual dimensions of the cell itself, I cannot give you one definitive answer as there are at least eight possible means of escape depending on the rest of the situation.

However, there are a few simple possibilities.

  • Pick the lock.
  • Shout for help and incapacitate the guard, stealing his or her uniform and escaping in disguise. Two guards may possibly be incapacitated if desired.
  • Lift the bed so it rests on the wall as a ladder. Climb up the bed and out the window.

However, I think the answer you are looking for—since you specifically mention tunneling—is below.

  • Use the loose dirt from the failed tunnel attempt to build a base high enough to stand on to climb out the window. The dirt, depending on the quantity available, may be packed on the floor or on the bed.

Your convicts certainly aren’t very patient if they can’t be bothered to dig one tunnel.

-SH

    12 Jan 2012

    Anonymous asked: My my, Sherlock! You're getting through these mighty quick. How about another. Paul is 20 years old in 1980, but only 15 years old in 1985. How is this possible? xxx

    Paul was born in 2000 B.C.E. Not that anyone born in that era was named Paul. Dreadfully inaccurate.

    -SH

    12 Jan 2012

    Anonymous asked: If you are still bored, this is my riddle again: A man and a woman were driving in their car when it broke down. The man decided to go for help at a gas station a few miles back. He made sure nobody was in the car, rolled all the windows up, and locked all of the sedan's doors. He went off, but when he came back, his wife was dead, and there was a stranger in the car. No physical damage was done to the car, so how did the stranger get in?

    I am always bored. Humanity is boring.

    And really, you can do so much better than this. The woman was pregnant and in labor, and died in childbirth. The baby did not.

    Obviously.

    -SH

    12 Jan 2012

    Anonymous asked: Tell us about Joan Watson. I am curious.

    Joan? Joan…well, she’s my flatmate. She is a former army doctor, now an intermittent freelance surgeon of sorts. If she had not gone into the army, I would say she would have made an excellent emergency room surgeon. But she did go into the army, and served in Afghanistan for a time until she was wounded when her medical convoy was attacked. (She has never told me as much about the nature of her injury, but it is quite obvious.) She came back to London to recover and was introduced to me at St. Bart’s, as both she and I were looking for flatmates. She was at Baker Street with me when Lestrade came by about the serial suicides and I thought she would like to come along. We have lived and worked together quite a lot since then.

    She does not have the most brilliant of minds, but she has the rare quality of being able to amplify the brilliance of someone such as myself. This is a unique talent, and I am forced to admit I enjoy her company. Joan is very normal. But unusual. And she has a tremendous strength of spirit and heart. The combination of these things is… interesting to me.

    -SH

    12 Jan 2012

    Anonymous asked: Dear dear, Sherlock! Having problems with my little riddle are we? Do you want a hint? I might give you one if you're polite. xxx

    I have received no riddle apart from the ridiculously simple one you sent two days ago. I have been aware that there have been technical problems in the servers of this website recently. Perhaps try submitting it instead.

    -SH

    11 Jan 2012

    Anonymous asked: Sherlock, we're out of milk again. Pick some up next time you go out?
    -JW

    Joan, stop worrying about the chip and PIN machine. You can always use my card. You know where I keep it.

    -SH