Fingertips: Who's Knockin' On The Wall?
by Melvin Rangasamy (2012)
Genres: Logic Puzzle

You live in a vibrant international community, in all senses of the word 'vibrant'. But who is that knocking on the wall?

action: %
response: Standard interpreter 1.0 (6b) / Library serial number 080126
Standard Rules version 2/090402 by Graham Nelson
Common Game Code by Eggerich Von Eggermond
Basic Screen Effects version 7 by Emily Short

You're relaxing at home, adjusting your deer stalker when you hear knocking on what sounds like a wooden wall coming from the row of five houses opposite your own. You can't quite recall which of your neighbours has woodworking as a hobby. Fortunately you remember that each house has a unique colour and the owners have a unique name, have a unique nationality, play a different preferred IF game and have a different hobby. You also remember these facts pertaining to your neighbours:

1. Shepherd is Galician.
2. The person who is Italian is directly to the left of the person who is Norwegian.
3. The person who is Italian has a Teal House.
4. The person who likes juggling lives next to the person who plays Violet.
5. River lives in the first house.
6. Fessel plays The Chinese Room.
7. The person who plays Curses has a Navy House.
8. The person who is Bulgarian plays Violet.
9. The person who plays Colossal Cave Adventure has a neighbour who has a White House.
10. Moriarty has a Black House.
11. The person living in the centre house has a Fuchsia House.
12. River lives next to the person who is Turkish.
13. Smith likes dancing.
14. The person who plays Colossal Cave Adventure lives next to the person who likes boating.
15. The person who plays Aotearoa likes camping.

So, who is knocking on the wall?
action: Fessel
response: You head confidently over to the row of houses and see someone working on a wooden wall and making knocking sounds in the process. It is of course Fessel, as you so rightly predicted! Once you have ruled out the impossible, whatever woodworker that remains, however improbable, must be the one.