Errata for Puzzle Design Tournament 2005
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Puzzle 01 
none
Puzzle 02 
none
Puzzle 03 
Any shortest way is valid going from food to food.
There cannot be any food-cell where the snake is initially placed.
The head of the snake can move to a cell that the tail of the snake is just vacating.
The snake can touch itself while moving.
Puzzle 04 
none
Puzzle 05 
PP: 3 times the number of hints outside, plus 5 times the number of hints inside. (Score in the example is correct)
Puzzle 06 
none
Puzzle 07 
none
Puzzle 08 
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Puzzle 09 
Maximum radar power is 8.
The route can not visit the same square more than once.
Puzzle 10 
none
Puzzle 11 
Score is rounded after all the calculations are done.
Puzzle 12 
none
Puzzle 13 
none
Puzzle 14 
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Puzzle 15 
The example is an invalid one, because N-pentomino's center of gravity was not supported below.
2x2 squares might be overlapping each other (A 2x4 space includes three 2x2 squares)
The top line may have only a space-holder, without any pentominoes.
If a pentomino is supported when it's just fallen, its position becomes fixed and future pentominoes fall and are supported accordingly.
Space-holders don't affect the counting of empty 2x2 squares.
Puzzle 16 
Answers of the two set-ups need not be the same.
Example answer key: 18: ... - 5: ... - 23: ...
Puzzle 17 
none
Puzzle 18 
none
Puzzle 19 
none
Puzzle 20 
none
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