Seks

Seks is a two-player abstract strategy game played with dice on an 11×11 board. Every die is a piece whose face tells how far it can travel. Moving spends that strength, so a player keeps choosing between advancing now and charging dice up for later. It is built with Pyxel.

Installation

Seks needs Python 3.12 or newer. The easiest way to install the game is as a standalone tool:

uv tool install seks    # or: pipx install seks

A plain pip install seks works too.

Usage

Start the game with:

seks

python -m seks does the same thing. To run it from a clone of this repository, use uv run seks.

Themes

Pick a color theme with --theme:

seks --theme catppuccin-mocha

The default theme is felt, and classic has the original colors of the game. Run seks --help to list all themes.

felt	classic	wood	azulejo
paper	nord	catppuccin-mocha	catppuccin-latte
dracula	gruvbox	solarized	tokyo-night
rose-pine

Rules

Setup

The board has 11 columns and 11 rows. Each player starts with 16 dice:

• 6 dice showing 1 on their back row, on every other cell;
• 10 dice showing 2 on the row in front of it, which is full except for the center column.

White starts at the bottom of the screen and Black at the top. White plays first, and the players take turns after that.

Your turn

On your turn, click one of your dice to select it, then do exactly one of the following.

1. Move. A die moves in a straight line in any of the 8 directions (orthogonal or diagonal) by at most as many cells as its value. It cannot jump over other dice or land on an occupied cell. After the move, the die shows the number of cells it traveled: a 4 that moves 2 cells becomes a 2.

When you select a die, every cell it can reach is highlighted, and the number shown on each cell is the value the die will have if it lands there. The selected die itself shows a preview of its incremented value (see below).

Left: a white 2 is selected and can move one or two cells. Right: later on, a white 3 moved three cells forward and still shows 3.

2. Increment. Click the selected die again to add 1 to its value. This uses up your turn. A die can reach at most 6. Clicking a selected 6 again only cancels the selection.

White spent its first turn turning a 2 into a 3.

Captures

Captures are custodial: after you move a die, every enemy die that sits orthogonally next to the cell where it landed (up, down, left or right) and has one of your dice directly on its other side is captured and removed from the board.

• A single move can capture in several directions at once.
• Diagonal neighbors are never captured.
• Only the player who moves captures: moving a die between two enemy dice is safe.
• Incrementing a die never captures.

The black 2 is flanked on its right by a white 3. White moves the other 3 up to the left of the black die and captures it.

The counters on the left side of the screen show how many dice each player has lost. The top counter counts White's losses and the bottom one counts Black's.

Winning

You win as soon as one of your dice moves onto the opponent's back row: the top row for White, the bottom row for Black.

You also win when, after your play, your opponent cannot play: they have lost every die, or each of their dice is a 6 with no free cell to move to.

The center column starts with a gap in the second row. This white 3 uses it to reach the top row and win.

Development

The project uses uv and taskipy:

git clone https://github.com/fabiommendes/seks.git
cd seks
uv sync
uv run task --list

The main tasks are task test, task lint, task docs, task ci and task release. task screenshots plays a scripted game and regenerates the images in this README. See CONTRIBUTING.md for details.

About the name

Seks means "six" in Danish, Norwegian and Faroese, after the highest face of a die.

License

Seks is released under the MIT License.