---
name: "gnuan"
section: "6"
platform: "linux"
package: "gnuchess"
version: "4.0.pl79-1"
release: "Debian 2.1 (Slink)"
platforms: ["linux"]
url: "https://new.carta.tech/gnuan"
---

# gnuan(6)

## NAME

gnuan

## SYNOPSIS

**gnuan**

## DESCRIPTION

*gnuan* produces an analysis of a chess game. For each move it shows the move, the score and the principle variation selected by *gnuchess*

*gnuan* prompts for input parameters when it is invoked. Input file is a *gnuchess* list file or a  *xboard* game file or a *PGN* file.

*gnuan is a modification of the gnuan program from* Truman Collins (tcollins@pdx.mentor.com).

## FUNCTION LETTERS

The following commands are recognized:

**bd** -- Print out the current board

**depth n** -- set depth to search

**next** -- find the next best move in this position.

**top n** -- find the best n moves (1\<n\<5) in each position.

**quit** -- quit

**n** -- where n is a number, go to move n. n must be forward from current position

**var** -- enter a variation from the stored line. Return from the variation will go back to the current posution. If you are in a variation you enter the moves and they are then evaluated.

**rav** -- return from a variation.

**go** -- advance 1 ply.

To emulate the old gnuan just type a number \> number of moves at the command prompt. The moves will be examined til the end of the game.

## BUGS

## SEE ALSO

```
gnuchess(6)
chesstool(6)
xboard(6)
```