I made this to test some ideas for a game I'm developing. Feedback would be appreciated.
What is the key?
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The number on a black triangle is the sum of its adjacents' numbers.
$10 + 25 - 15 = 20$
We may rotate each pieces so that the corners inside the board are squares and circles. Then, look at the triangles (and its values), sum them to get the key.
D R R U U
U L R D D
R D R R L
U U L U D
L D U D U
Note: the holes are
S S C S
C S C C
C S S C
C C S C
$-1 \times 7 - 2 \times 4 + 1 \times 8 + 2 \times 6 = 5$
Puzzle #3 -- Thanks Dr Xorile for the help! ^^
The word on the right is the antonym of the word on the left.
TWELVE - NINE = $3$
For the numbers, sum the value of black circles. The value is the position from the right side.
@: inverse (black to white, white to black) all circles.
#: inverse first half of circles.
%: inverse last half of circles.
$: add 2 white circles in the end.
Now we must identify the symbols replacing X, Y, and Z.
As the inverses are commutative, \$X% will be the same as \$%X, this allows us to identify each letters easier.
X = @
Y = %
Z = #
XY\$X\$ZY = @%\$@\$#% = WWBBWWBB
$6+5+2+1 = 14$
For each colors, we may "mix" the keys from previous puzzles.
Then the numbers can be converted to letters (of 26).
Yellow: 3 = C
Blue: 20 = T
Pink: Red + White = 5 + 14 = S
Purple + 10: Red + Blue + 10 = 5 + 20 + 10 = 35 (9) = I
Red: 5 = E
Green: Blue + Yellow = 20 + 3 = W
Orange: Red + Yellow = 5 + 3 = 8 = H
Anagram it, we will get WITCHES, as their words have power.
I really enjoy solving this puzzle, great work! :D