Category Archives: Ciphers

The following image should be sufficient for you to determine the password to a reasonable degree of accuracy:

Update: In my blithering ineptitude, I accidentally missed the bottom row off of the cipher. It has now been amended, and should be a 20 × 20 grid: The backdrop is a photograph of the Dumbbell Nebula, which I captured over a year ago by … Continue reading →

As 37 is a centred hexagonal number, I decided to opt for a vaguely hexagonal arrangement: As usual, there is a password-protected solvers’ area.

Despite currently suffering from hay fever, I was able to combine the following attributes into a cipher: The title is in alliterative Latin. The index of the cipher (36) is a perfect square, as is the length of the cipher … Continue reading →

You may find this one easier if you’ve attempted Cipher 6.

Many of my ciphers were computerised. By contrast, this one was created manually and could have appeared 400 years ago, long before Blaise Pascal produced the first mechanical calculator.

I’ve based this particular cipher on a sliding block puzzle, the initial and final positions of which are displayed below: Here is the ciphertext: 145, 8, 21, 85, 24, 80, 130, 97, 136, 79, 91, 61, 199, 93, 19, 30, … Continue reading →

This was not the cipher I originally intended to make, but rather a compromise due to time constraints. Also, my complete lack of imagination is manifested in the fact that this cipher lacks a title. The only elegant property is that the … Continue reading →

Firstly, I’ve been assigned the task of advertising the final episode of Magpie and Stump, which takes place at 21:30 in the Winstanley Lecture Theatre of Trinity College this Thursday (13th June 2013). It will be absolutely epic, and even … Continue reading →

This is the final cipher of the first season on cp4space. This will be followed by a short period of cp4space aestivation, estimated to be about two or three weeks, before the next season of ciphers commences. Don’t worry; there will still … Continue reading →