#Life 1.05
#D Still-Life Reflector
#D
#D Converts one glider into 4 for any input stream
#D with a period of 672 or greater, unless pipelining
#D techniques are employed. It is a great challenge
#D to come up with the small, fast reflector that
#D consists solely of still-lifes. Dieter Leithner
#D (dietrich.deithner@dlr.de) is offering a $100
#D prize for the first stable glider reflector that
#D fits within a 50x50 box.
#D
#D A glider collides with a boat in generation 97,
#D destroying the boat but creating a B-heptomino at
#D generation 107. This is converted into a Herschel
#D in 59 generations. Herschel conduits of lengths 64,
#D 77, 77, 64, 64, 77, 119, and 64 set the Herschel up
#D for a final collision to recreate the destroyed
#D boat.
#D
#D The first stable glider reflectors were created by
#D Paul Callahan and Dean Hickerson in late 1996. This
#D one by Dave Buckingham, May 30, 1997.
#N
#P -31 -20
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*.*
.*
#P -44 -16
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**.*
#P -35 -13
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#P -27 -5
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..*
*.*
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#P -47 13
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#P -46 20
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#P -42 18
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#P -40 24
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**
#P -26 25
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...*
***
*
#P -11 24
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**
#P -11 5
...*
.***
*
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#P -1 12
*
***
...*
..**
#P 14 15
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**
#P 14 32
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*
.***
...*
#P 20 22
..**
.*.*
.*
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#P 34 29
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**
#P 39 24
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**
#P 41 28
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**
#P 45 22
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**
#P 12 4
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...*
***
*..***
..*...*
.**..**
#P 43 -13
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**
#P 45 -7
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#P 49 -9
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#P 50 -2
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**
#P 27 -16
...*
.***
*
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#P 14 -13
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#P 3 -3
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*.*
..*
..**
#P 0 -33
...*
.***
*
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#P -1 -27
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#P -6 -26
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#P -7 -32
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#P -14 1
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...*
***
*
#P -16 -1
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#P -20 -8
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***
...*
..*.*
...*
#P -18 -14
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#P -26 -40
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#P -33 -39
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#P -31 -35
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#P -37 -33
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#P -26 -17
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*
.***
...*
#P -59 -46
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.**
**