Here is the option window of AlphaChess :

In the Game tab you can activate the auto-update feature that will look for a new version
on startup, you can also enable the "Learning mode" wich will show you if a move is valid
or not by changing the color of the board's cases.
You can also choose in wich language you would like AlphaChess to be displayed
and the format of the move list items (notation). Finally it is possible to increase
or decrease the search depth of the computer player, you should only change this value
if you want to change the speed at which the computer calculates a move. If you have
a slow computer you can lower the value to make the computer player think faster or
if you have a really good computer you can raise it to slow it down. Note that changing
this value will also affect how well the computer opponent plays.

In the board tab you can change the colors of the game board and the color of
the cases shown in each of their state. It is also possible to choose wich case style
to display the board with, the Classic style will display the cases one next to the
others (without borders), the Enhanced style will show a gap in between every
cases aswell as a border for each of them.
With the themes list you can easily change all of the colors of the game board and it's
cases just by selecting a item from the list. To add your own theme, simply type
the desired name in the input box and click on Save, if a theme of the same name
already exist, a message will ask you if you wich to replace it with the new one. To
remove a scheme from the list, simply select it and then click on the Delete button.

In the Pieces tab you can choose wich chess set you would like to use, 20 sets
are included with the game. The Display mode allows you to choose between the Standard mode,
which displays all the pieces in their original color (black and white), or the Colored mode
which allows you to choose the color of the pieces for both players.
Note that the Colored mode always displays the pieces with a black border and that it
only the inside color will be changed, so it is not recommended to choose dark colors
or to put the same color for both players.

In the Sounds tab you can choose wich sound files the game will play for each events.
The sound files must not be compressed (.wav), mp3 audio files are not supported.
Simply select a sound event in the list and it's associated sound file will show below. You
can click on the Browse button to browse your computer for a sound file, or click
on the Preview button to play the selected sound file.

In the Windows tab you can enable the docking options for the moves list and the
chat window.