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cake>pie
08-14-2011, 06:00 PM
Here are several of my custom research levels that have not made it into the Journal of Reaction Engineering. More puzzles will be added as I come up with them. Feel free to post your solution stats, and I'll add them to the list of known solutions.

The levels are listed roughly in order of increasing difficulty. Warning: some of the later puzzles are wicked hard!


INH redux
A simpler version of my Isoniazid (http://en.wikipedia.org/wiki/Isoniazid) puzzle (ResearchNet Vol 2 No 4 (http://spacechem.net/solution-stats/inh))

Known solutions: 298/1/40

H4sIAFHwR04A/3WQwWrDMAyGX2X43IDktMlIYLD10l2yBxg7eIm6mqV2sB1YW9p nn+y0rKXsYC
H/yP4//QehzTCGbG8NeVEdBMSSNL6+H8TW9tSOPYlKvJDZk6F6eYJixac GQMAasJBcZao5AtSY
dMQCuZcFcp90mXSJBchayiL2URcz0drRBFGhPH4cZwL/Z3jeamNVS8EaHZzuqW6WS4aRTSzx7x
ySM9Y5luwJWEZ/+cd1ppb3zmxtx3Afx5X/q2djtdfdJYWyOUH+Fi2jPZRxKZkWz+OC0/qwQFbY
mCsjIk/OMcFFBWGK7lFyP4+4+YS7iL/lmPriFhci7Eb5rFfui7IJW1TBjTQTn9Z05LLzrJwGPR
lvnajWqvc0SevRk7s8SjNDr0Og26lAPQ3WXcthN8QwHHlSrt0w l1HbFE+zenDUjT8sqTFsoqFo
1Tc9DZpY6/R6rTnKsBMVHH8BeDu3s30CAAA=


Tainted Milk
Melamine (http://en.wikipedia.org/wiki/Melamine), infamous for its role in the 2008 Chinese milk scandal (http://en.wikipedia.org/wiki/2008_Chinese_milk_scandal) and other protein adulteration cases.
The real life industrial process has the chemical reaction
6 HCNO -> C3H6N6 + 3 CO2
but there is nowhere for the excess CO2 to go in our reactor. Or is there?

Known solutions: 999/1/66

H4sIAGn0R04A/2WQP2/CMBDFv0p1M5F8DiQolrqw0AG6dKs6uM6lWBg78p+BovDZawcqU XXwyf
fTu3vPvoC2Y4rVt7MUoLsAK2VmuX2/wMkZUskQdPASnDpLq9WTVLoX2/3mVSA2nAnGkTHBcZ0r
w5YjLEC5ZCN0yKePaVqAS/G/z8PyHRl50pbE5srq7ZU1+3zyMkQmkDccBdYt49mwRcxWsyFvWe
bLJpO6Lne2KnpeN8gFX7ZZg6u2kFXR18u55rCPAVmJd5ChMtJ/UXULCl30iRbw6WxPvrpr1zdh
IBuch26QJtANDSmQ/x2aNaPRMf5lkQyNzs/0PhvPY3m9p0DSq0OOZeWpkDepbaT+aafNMVOZ4q
FYgpJHeh41ZdbrYdD5++IZOjb9AB1FaUvKAQAA


Baeyer, Dec 4 1864
The discovery of barbituric acid (http://en.wikipedia.org/wiki/Barbituric_acid) by German chemist Adolf von Baeyer on December 4, 1864, combining urea and malonic acid in a condensation reaction.

Known solutions: 616/1/77

H4sIAKPtR04A/3WRMU/DMBCF/0rkCaREunOqNIolJChDF+iEGBCDm16oRRpHtjOUqv3t2E6p2g
IZTsnz8913Lzumun5w2ZfuyLJqxyCUqPnPtx3b6JbqoSVWsRdD UszmB5g8H4AvBEIJXCAWCAJw
iig4TgEFAPrKYwWOAIKHylJW66FzrEK+f9+nDP8f9SRb3ak6ua/VKo7kN7PFYn7rX3zLMjTOQ2
OICOARMIIEhCIODzqPTh6dGHHwDxBPogf3O4QznAdplsoN5kTk MzjlcID8uPIYwjGQvIxTIx8v
0AfF42mkGcPhIzEvAmv053jJBz8xncG8SkdGzMdf4B/fDeOe/Pquv7yWNmul+aBs3JFVjWwtpW
ypuxWZ7GguR6elzmpz8gSpGSxdKrZvlXNXoqOWem3OZbftA64h S9LUa0/Wyc2YJm3JpMkj1ckk
wbKY+DM5uHUYzWr5SXe9Iq+tVNMov7Xbsgr239SUmCWrAgAA


Getting Pumped
DOPA (http://en.wikipedia.org/wiki/L-DOPA), precursor to the "fight-or-flight" hormones adrenaline, noradrenaline and dopamine.

Known solutions: 925/1/104

H4sIAAf4R04A/3VQXWuDQBD8K+WeI+yeX6kHhZKW9qVJ3ksfrFmjVE/R8yENyW/v7plCGijKcI
6zMzt3VLXtJxd8d5ZGlR0VCniOP9+Pqu0aKqaGVKbeyFWHhizV bW3JrF7PEK6NxhTQICYajdYI
YHBG4EctVNFN1qkM9enjtFDwv/0zu9uuMaszaLbWGwOICCbE5RwQ8tlba0wQbqzZu5vcnyo+6y
rgabN9FPd7dkd+15szRAZAQhAkRIy1RDFKLAdKC26UyF+dIJ9D 3zTkFQxov+C8VORbR14Te0wS
0AYi0fCoaOKUeYj9VChMGAtCshR9KomQMnNVDqRalY9Bkw97Cu aSKnPDRAv12dkdDcFFu5yFI9
mxG34lwpTTSEyUeTNemLFvauduSEcN9d3g6XnYHXq5uYFGyoei 4rVs3grzQs7Vdn+3ndqedszn
k6skVBX5Fz30NTG3q8uy5st3B5XB6Qf4rrW1awIAAA==


Rewritable DVD
GeSbTe (http://en.wikipedia.org/wiki/GeSbTe) (Germanium-Antimony-Tellurium), a phase change material used in rewritable DVDs, and more recently in phase-change memory applications.
Crystal fragment structure based from diagram here (http://www.aist.go.jp/aist_j/aistinfo/aist_today/vol04_12/vol04_12_topics2/vol04_12_topics2.html).

Known solutions: 3070/1/139, 3770/1/125

H4sIAMDxR04A/3WQT2vDMAzFv0rxuaGS02Qlhp0K7Xkpu4wdnFZpw1w7ODajK91 nn/9s0DF28U
M/nvUkXdmgR++KD6NpYs2VYXwSC+XLlZ2Nor1XxBq2vRysOZIWW4 GIAGzO9sZrxxrkt9fbnMH/
f1uvem9F+wkrAYA1ogDEGlBgrEBwSBXPEHiCmIUH+RMX8ox3v2 ZP+XehG2q7Hc16K49n0k5saN
F2ix0JvqwwpZQ8tq9LDiGsrmIFdRW2E7yqeJyOZ/hQRQtkCJiEZ0FIFlwm4WW2LEPrYIEyOXnO
g9j6bg+IW5zkVChpj1TkfVjjrKc564w+kC2+vatsnEhPxrKml2 qijHo/kf35lDyjGpyj3y5Hik
Zj77G7jPFKliaSdn8Kc2l5juSJ3u3gZKdotn5eBy69O8VUtpdv 9DgOFNhh6PshHNpdWAO3LzRN
jJ5IAgAA