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        <title>Anonymine - guess free minesweeper</title>

        <meta name="description" content="Anonymine is a text based

minesweeper that can be won without any guessing, and has a few other

features, including hexagonal and von Neumann fields."/>

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<span class="textonly" translate="no">]</span><span class="sub active">Anonymine</span><span class="textonly" translate="no">[</span>

<span class="textonly" translate="no">[</span><a class="sub" href="/projects/light-sensor/">Analog light sensor</a><span class="textonly" translate="no">]</span>

<span class="textonly" translate="no">[</span><a class="sub" href="/projects/PLLM-M702A/">Reverse-engineered schematics for PLLM-M702A</a><span class="textonly" translate="no">]</span>

<span class="textonly" translate="no">[</span><a class="sub" href="/small-scripts/">Small scripts</a><span class="textonly" translate="no">]</span>

<span class="textonly" translate="no">[</span><a class="sub" href="/thinkpad/">-&gt; My IBM thinkpad</a><span class="textonly" translate="no">]</span>

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        <main><div id="content">
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            <h1 id="title">Anonymine - guess free minesweeper</h1>

            <p class="notprint" style="max-width: 100%;">

            <!-- If I make these images link back, it will cause

            accessiblity issues on mobile devices. -->

            <img src="imgs4/banner1.png" alt="" width="420" height="280"/>

            <img src="imgs4/banner2.png" alt="" width="420" height="280"/>

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            <div id="top">
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                <p>Latest version: 0.6.44 released on 2025-06-22

                   - <a href="#news">what's new</a></p>

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                <ul>
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                    <li><a href="#about">About</a></li>

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                    <li>
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                        <a href="#download">Download</a>

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                        <small>
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                            <span class="dl-">(<a href="#dl-unix">Linux &amp; Unix,</a></span>

                            <a href="#dl-unix" class="dl-">macOS,</a>

                            <a href="#dl-windows" class="dl-">Windows,</a>

                            <a href="#dl-unix" class="dl-">Haiku OS</a>)

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                        </small>
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                    </li>
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                    <li><a href="#screenshots">Screenshots</a></li>

                    <li><a href="#platforms">Platforms</a></li>

                    <li><a href="#news">What's new?</a></li>

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                </ul>
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                <p>
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                    You can try it on my demo server using SSH.

                    Log in as play@anonymine-demo.oskog97.com,

                    password is "play".<br/>

                    <a href="http://anonymine-demo.oskog97.com:8080/" class="printurl"

                    >Leaderboard for public demo server</a>

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                </p>
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            </div>
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            <section><div class="section" id="about">

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            <h2>About</h2>
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            <p class="notprint"><small><a href="#top">To top of the page</a></small></p>

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            <p>
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                Anonymine is the "anonymous minesweeper" as I never had any

                name for it, but I think "Anonymine" works just fine.

                Back in December 2015 I was curious about creating an algorithm

                for solving minesweeper, and then I needed an excuse for it

                so I turned it into a terminal game that can be solved wihout any

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                guessing.
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            </p>
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            <p>
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                Do note that it runs in the terminal, so it may not be your cup of

                tea.  Mouse input is usually supported, but only really useful in

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                hexagonal mode.
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            </p>
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            <p>
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                Being solvable without guessing is not its only feature,

                it has many other unusual or even unique features:

                the games are fully customizable and Anonymine seems to be the

                only minesweeper with <span class="a"><a

                href="https://en.wikipedia.org/wiki/Von_Neumann_neighborhood"

                >von Neumann grids</a>.</span>

                <!-- No printurl, it's just Wikipedia. -->

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            </p>
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            <p>
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                For each game you can set the field type (normal / hexagonal

                / von Neumann), width, height and number of mines, only

                restricted to certain minimums and security limits (to avoid

                igniting your computer).

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            </p>
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            <div class="atom">
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            <h3>The supported field types/game types are:</h3>

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            <div class="atom">
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            <!-- FIXME: This should be a dl with dt and dd. -->

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            <h4>Von Neumann grids</h4>
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                <p>
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                    I have never seen another

                    minesweeper that can have fields with von Neumann

                    grids.  In a von Neumann neighbourhood (grid),

                    each cell/square has only four neighbours, at the edges

                    but not at the corners.

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                </p>
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                <p>
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                    The biggest number you'll ever see is 3. But that doesn't

                    mean it's easy, it's quite the opposite.

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                </p>
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            </div>
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            <div class="atom">
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            <h4>Traditional fields with Moore grids</h4>

                <p>Like any other minsweeper.</p>

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            </div>
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            <div class="atom">
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            <h4>Hexagonal fields</h4>
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                <p>
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                    Every cell is a hexagon and has six

                    neighbours, (with obvious exceptions).

                    This mode has separate key bindings because there is no

                    single "up" and single "down" direction.

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                </p>
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            </div>
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            </div>
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            <div class="atom">
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            <h3>More features:</h3>
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```
            <ul>
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                <li>
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                    It looks almost fine on monochrome terminals.

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                </li>
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                <li>
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                    Even the losers can get on their very own highscores table.

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                </li>
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                <li>
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                    There are cheat codes. They're not useful, but will be a

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                    challenge to crack.
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                </li>
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            </ul>
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            </div>
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            </div></section>
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            <section><div class="section" id="download">

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            <h2>Download</h2>
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            <p class="notprint"><small><a href="#top">To top of the page</a></small></p>

            <p><strong>NOTE</strong>:  Not for smartphones and tablets.</p>

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            <p class="notprint bold">
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                <a href="#dl-unix">Linux, macOS, unix-likes, Haiku</a>,

                <a href="#dl-windows">Windows</a>,

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            </p>
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            <p><a href="https://oskog97.com/archive/anonymine/?C=M&amp;O=A"

                  class="printurl">Archive of all released versions</a></p>

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            <p>
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                If you find any bugs, please <span class="a"><a

```
                     class="printurl"
```

                    href="https://gitlab.com/oskog97/anonymine/issues"

                >create an issue</a>.</span>

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            </p>
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            <div class="atom">
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            <h3 id="dl-unix">GNU/Linux, macOS, *BSD, Cygwin, other unix-like

                             operating systems, and Haiku</h3>

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            <ul>
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                <li><a href="https://oskog97.com/archive/anonymine/anonymine-0.6.44.tar.xz"

                    class="printurl download">xz compressed tarball of version 0.6.44 from 2025-06-22</a></li>

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                <li><a class="printurl"
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                    href="https://gitlab.com/oskog97/anonymine/">GitLab</a></li>

                <li><a href="#release-notes">Release notes</a></li>

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            </ul>
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            </div>
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            <div class="atom">
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            <h3 id="dl-windows">Windows</h3>

            <p>There are a few options:</p>

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            <ol>
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                <li><strong>Recommended:</strong> WSL (both 1 and 2 work just fine)</li>

                <li>Automatic Cygwin and Anonymine installer</li>

                <li>Install Python and windows-curses</li>

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            </ol>
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            <p><a href="https://gitlab.com/oskog97/anonymine/-/wikis/Windows"

                >Comparison of options</a></p>

            <h4>Automatic Cygwin installer</h4>

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            Downloads:
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            <ul>
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                <li><a href="https://oskog97.com/archive/anonymine/windows/Anonymine-Windows-19.0-stage2-1.20-cygsetup-2.934.zip"

                    class="printurl download">Windows installer from 2025-07-02

                    (version 19.0-stage2-1.20

                    with Cygwin setup 2.934)

```
                </a></li>
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                <li><a href="https://gitlab.com/oskog97/anonymine-windows"

                    class="printurl">Fetch newest version from GitLab

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                </a></li>
```
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            </ul>
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            <h4>Install Python and windows-curses</h4>

            It is possible to run the unix version with some limitations.

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            <ul>
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                <li><a class="printurl"
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href="https://gitlab.com/oskog97/anonymine/blob/master/doc/INSTALL.Windows.txt">

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                    Instructions</a>
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                    </li>
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                <li>You can download as a zip from <span class="a"><a

href="https://gitlab.com/oskog97/anonymine/-/archive/master/anonymine-master.zip"

                    class="printurl">Gitlab</a>.</span></li>

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            </ul>
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            </div>
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            </div></section>
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            <section><div class="section" id="screenshots">

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            <h2>Screenshots</h2>
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            <p class="notprint"><small><a href="#top">To top of the page</a></small></p>

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            <p>
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                <img width="484" height="316" alt="" src="imgs4/last-cells.png"/>

                <br/><span class="caption">

                    The von Neumann field: The biggest number you'll ever see

                    is 3.  This mode makes Anonymine a unique minesweeper.

                    (Attention mode has been enabled to find the last few

```
                    cells.)
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                </span>
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            </p>
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            <p>
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                <img width="484" height="316" alt="" src="imgs4/traditional.png"/>

                <br/><span class="caption">

                    Traditional (Moore) field, nothing special

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                </span>
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            </p>
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            <p>
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                <img width="484" height="316" alt="" src="imgs4/hexagonal.png"/>

                <br/><span class="caption">

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                    Hexagonal field
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                </span>
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            </p>
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            <p>
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                <img width="484" height="316" alt="" src="imgs4/losers.png"/>

                <br/><span class="caption">

                    The losers' highscores

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                </span>
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            </p>
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            </div></section>
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            <section><div class="section" id="platforms">

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            <h2>Platforms</h2>
```

            <p class="notprint"><small><a href="#top">To top of the page</a></small></p>

```
            <p>
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                Check the <a class="printurl"

href="https://gitlab.com/oskog97/anonymine/-/blob/master/README.md#blob-content-holder"

                >readme</a> and <a class="printurl"

href="https://gitlab.com/oskog97/anonymine/blob/master/doc/INSTALL.txt"

                >installation instructions</a> for more details.

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            </p>
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            <div class="atom">
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            <h3>Tested on</h3>
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            <p>
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                Here's a list of various platforms Anonymine has been tested

                on.  It works on all of them unless I say otherwise, but there

                may be some minor issues.

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            </p>
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```
            <ul>
```

                <li>Various GNU/Linux distributions</li>

                <li>FreeBSD, OpenBSD, NetBSD, DragonflyBSD</li>

```
                <li>Haiku</li>
```
```
                <li>SerenityOS</li>
```
```
                <li>macOS</li>
```

                <li>OpenIndiana and Solaris</li>

                <li>Debian GNU/Hurd</li>

                <li>Cygwin (on Windows and ReactOS)</li>

                <li>Windows and ReactOS (without Cygwin)</li>

```
            </ul>
```
```
            Python interpreters:
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```
            <ul>
```
```
                <li>CPython</li>
```

                <li>PyPy (lacks <code>curses</code> on Windows)</li>

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            </ul>
```
```
            </div>
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```
            <div class="atom">
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            <h4>"Some coercion required"</h4>

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            <p>
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                Using <span class="a"><a href="http://gitlab.com/oskog97/poop"

                class="printurl">Pööp</a>,</span> Anonymine can be made to work

```
                on even more platforms.
```

                <span class="bold">"Do not try this at home"</span>

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            </p>
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```
            <dl>
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```
                <dt>GraalVM Python</dt>
```

                <dd>Needs only <code>curses</code></dd>

                <dt>PyPy on Windows</dt>

                <dd>Needs only <code>curses</code>,

                    but the Windows console is really slow</dd>

```
                <dt>Jython</dt>
```

                <dd>Needs <code>curses</code> and <code>multiprocessing</code></dd>

```
                <dt>IronPython</dt>
```

                <dd>Needs very different configuration files and

                    <code>curses</code> and <code>multiprocessing</code></dd>

```
                <dt>Minix 3.4</dt>
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                <dd>Needs <code>multiprocessing</code> and <code>threading</code></dd>

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            </dl>
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            </div>
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            </div></section>
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            <section><div class="section" id="news">

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                <h2>What's new?</h2>
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                <p class="notprint"><small><a href="#top">To top of the page</a></small></p>

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                <dl>
```

                <dt id="release-notes">Release notes</dt>

```
                <dd>
```
```
                <pre>0.6.43
```

    Fixed issue with highscores on Windows 11

```
0.6.42
```
```
    Removed the seed feature
```
```
0.6.41
```
```
    Fixed two Python 3.13+ issues:
```

        - Import failure on all platforms.

        - Crash when fork()ing on some rare platforms

    Some fixes and workaround have been included already in 0.6.38

```
0.6.36
```

    - cursescfg updated and older versions are no longer compatible in

      hexagonal mode.  Added: 'grid2', 'grid3', and 'grid4'

```
  [macOS, SerenityOS]
```

    - Anonymine will change TERM for itself to enable the numpad to work.

```
  [SerenityOS]
```

    - Workaround for recent bug (July 2024), see doc/INSTALL.SerenityOS</pre>

```
                <p><a class="printurl"
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        href="https://gitlab.com/oskog97/anonymine/blob/master/doc/RELEASE-NOTES"

                >See the rest of the file on Gitlab</a></p>

```
                </dd>
```
```
                <dt>Bigger changes</dt>
```
```
                <dd>
```

                <pre>What's new in 0.7.0 since 0.6.0?

```
================================
```
```
2024-xx-xx
```
```
Improved platform support:
```

    - Python 3.13+ supported since 0.6.38

    - SerenityOS (First in 0.6.26, at least 0.6.38 required due to Python)

    - Icon for Anonymine on Haiku (0.6.17)

```
    - Mouse support on Haiku (0.6.37)
```

    - Fixed a race condition that previosuly required a bunch of platform

```
      specific workarounds (0.6.11)
```

    - Use Notepad to display highscores on Windows (0.6.33)

```
Updates:
```

    - New, much faster, field initialization algorithm. (0.6.29)

    - Fixed race condition (fix14) (0.6.11)

```
Security fixes:
```

    - 0.6.19: Prevent information leak if Anonymine is used as login shell

```
              for ssh.
```

    - 0.6.32: Prevent local DoS.  Don't read the entire highscores file,

              which is writeable by everyone, if it's too big.

    - 0.6.34: Check file permissions before loading configuration files</pre>

```
                <p><a class="printurl"
```

        href="https://gitlab.com/oskog97/anonymine/blob/master/doc/NEWS"

                >See the rest of NEWS on Gitlab</a></p>

```
                </dd>
```

                <dt>Low level changes</dt>

```
                <dd>
```
```
                <p><a class="printurl"
```

        href="https://gitlab.com/oskog97/anonymine/blob/master/ChangeLog"

                >See ChangeLog on Gitlab</a></p>

```
                </dd>
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        and my software usually under the <span class="a"><a target="_blank"

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```

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```

        <span class="notprint">Contact me if I haven't.</span>

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```
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```

        You can contact me at: <a href="mailto:oskar@oskog97.com"

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        <span class="a">(<a href="/pgp-pub/oskar.asc"

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```
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