Sure it is. I played a dozen of games using level A (10 to 15 s/move) and Elo looks to be around 865.

Some hints to use it:
To have it playing white, hit M(mode) on the first splash-screen.
Then either Enter to play level A or T(time) to select another level. After T, input a dummy move (from-square = to-square) from the A to H file you want as the level definition (select square then input Enter, Enter, Space).

Levels:
A : 10 to 15s
B : 30 to 90s
C : 5 to 15m
D : 20 to 50m
E : 1h to 4h
F : 5 to 24h

This starting mode also enables setting up a position! Moving an empty square onto a piece enables removing it.

To move: select from-square, Enter, select to-square, Enter, then either validate with Space or cancel with back-arrow.

Inputing a dummy move during the game instructs the program to play once on behalf of the player.

On your turn to play, you may eventually change the level of variety from 1 (optimal play) to 4 (higher variety).

MfG,
Tibono