Game Setup
This game is an interesting mixture of pure sequencing and grouping. We can make the standard sequencing diagram that tells us what order the songs go in.
But we’re also told who can sing the songs. This adds a new factor.
We’ll start with the sequencing rules. Y is earlier than T and O.
O is before P and Z.
I put X with a circle around it because X is random. It can go anywhere; first, last or in the middle.
The three rules that follow tell us who can sing which songs. I found it useful to draw these.
You should look for songs that can only be sung by one person. Only G can sing Y and Z, only H can sing T and only L can sing O. I highlighted these in my diagram by putting a box around them.
You can combine this with the last rule to make an interesting deduction. We know that the person singing first has to be different from the person singing last. George is the only one with two unique songs. Y and Z can’t be in first and last: only G can sing them.
Y goes earlier than Z so this tells us that if Y is first then Z can’t be the last. Likewise, if Z is last then Y can’t be first. This is going to be one of the major elements of the game.
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