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