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<!doctype html>
<html lang="en">
<head>
<title> Nissy | Nissy </title>
<meta name="viewport" content="width=device-width" /> <link rel="stylesheet" type="text/css" href="/style.css">
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<table class="menu">
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<td class="logo"> <a href="/"><img src="/favicon.png" alt="logo"></a> </td>
<td class="links">
<a href="/download/">Download</a> |
<a href="/examples/">Examples</a>
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<hr class="line">
<h1>Nissy</h1>
<p class=subtitle>A Rubik's cube solver and FMC assistant</p>
<img src="/screenshot.png" alt="A screenshot of nissy running in a terminal emulator">
<p>
Nissy is a command-line Rubik's cube solver. It can find optimal solutions
for random positions using techniques from Herbert Kociemba's
<a href="http://kociemba.org/cube.htm">Cube Explorer</a> and
Tomas Rokicki's
<a href="https://github.com/rokici/cube20src/blob/master/nxopt.md">nxopt</a>.
With 4 cores at 2.5GHz and using less than 3Gb of RAM, Nissy can find an optimal
solution in about a minute on average.
</p>
<p>
Nissy aims at being a complete tool
for FMC (Fewest Moves Challenge) practice. It can solve different steps
of Thistlethwaite's algorithm (also know as DR/HTR) and cans use NISS
(Normal-Inverse Scramble Switch).
</p>
<p>
You should use Nissy if:
</p>
<ul>
<li>
You want to analyze your DR solutions or check for multiple optimal
(or sub-optimal) solutions for EO/DR/HTR or similar steps.
</li>
<li>
You just want a Rubik's cube solver and you like command line interfaces.
</li>
<li>
You want an alternative to Cube Explorer.
</li>
</ul>
<p>
To get started, head to the <a href="/download/">download</a> page.
</p>
<p>
You can also see its source code by cloning the git repository
<a href="https://git.tronto.net/nissy/">git.tronto.net/nissy</a>
</p>
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