Game:

SpaceChem (2011)

Duration: 0:58

446 views

2

"1. The single reactor, which builds acrylic acid from random inputs of acetylene, carbon monoxide, and water, is complex, dense and hard to read. It uses 38 flip-flops. The red and blue waldos travel to 78 and 76 squares, respectively, of the 80 squares in the reactor.

2. People wanted to see all of the one-reactor solutions for Reppe Chemistry. After being stymied for part of week 5 when a Steam update prevented me from launching SpaceChem, I finally finished and submitted my Reppe Chemistry solution. However, it was then about 2 hours after the deadline, so no one except WildM got to see it or even knew of its existence. This solution is nearly the same as the one I submitted then. It was not influenced by other people's solutions, although as it turns out, there are similarities. Nothing in the solution was added specifically for the purpose of obfuscation.

3. This solution showcases the fact that there are differences between computer platforms when it comes to random-input puzzles, even when a solution itself is not platform-specific. This solution was made on a Mac, and it runs to completion on the Mac. Under Windows, it crashes after 28 outputs. There is a shortage of acetylene at that point in the Windows input stream, something that does not occur at any point in the Mac input stream for this puzzle."

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