---
name: "gpsshogi"
section: "6"
platform: "linux"
package: "gpsshogi"
version: "0.6.0-3+nmu1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/gpsshogi"
---

# gpsshogi(6)

GPSShogi for XShogi and the CSA protocol

## NAME

gpsshogi - GPSShogi for XShogi and the CSA protocol

## DESCRIPTION

### Search options:

- **-i** \[ **--initial-limit** \] arg (=400)

  initial limit of iterative deepening

- **--deepening-step** arg (=200)

  step of iterative deepening

- **-l** \[ **--search-limit** \] arg (=1400)

  maximum limit of search

- **-L** \[ **--record-limit** \] arg (=200)

  minimum depth left of storing record

- **-n** \[ **--node-limit** \] arg (=16000000)

  maximum number of search nodes (tested at each iteration)

- **--node-count-hard-limit** arg (=18446744073709551615)

  maximum number of search nodes (tested at every nodes)

- **-t** \[ **--table-size** \] arg (=4800000)

  number of entries in table

- **--check-table-size** arg (=-1)

  ignored.  just for backward compatibility.

- **--ignore-node-counts** arg (=1)

  ignore {node,checkmate} counts and table size and continue search until memory exhausts

- **--draw-coef** arg (=-1)

  preference for draw (prefer if positive, escape if negative), relative to pawn value

- **-N** \[ **--num-cpus** \] arg (=4)

  num cpus for parallel search

- **--memory-use-percent** arg (=100)

  percentage for memory use (normally 100)

### Evaluation options:

**-e** \[ **--eval-type** \] arg (=test) evaluation function (test or progress

- **--eval-data** arg

  filename for evaluation function

- **--progress-file** arg

  filename for NewProgress data

- **--eval-randomness** arg (=0)

  add random value generated by normal distribution of a given standard deviation, to evaluation values

### Match options:

- **-b** \[ **--black** \] arg (=sente)

  name of black player

- **-w** \[ **--white** \] arg (=gote)

  name of white player

- **-T** \[ **--time-left** \] arg (=1500)

  total time left

- **-B** \[ **--byoyomi** \] arg (=0)

  seconds for each move (byoyomi)

- **-o** \[ **--output-filename** \] arg (=gpsshogi.csa)

  filename of game record

- **-f** \[ **--initial-position** \] arg

  csa file of initial position

- **-R** \[ **--no-table-reuse** \]

  no effect (preserved only for backward compatibility)

- **--save-pv** arg (=1)

  use pv of previous search results

- **-c** \[ **--csa** \]

  use csa protocol, instead of gnushogi compatible mode

- **-a** \[ **--alphabeta** \]

  use alphabeta, instead of mtd(f)

- **-r** \[ **--random** \]

  random playing

- **-s** \[ **--sente** \]

  computer play first (second if not specified)

- **-P** \[ **--opponent-time** \]

  search while the opponent is thinking

- **-x** \[ **--move-with-comment** \]

  send move with comment (this is a private extension to CSA protocol)

### Opening options:

- **-K** \[ **--kisen-file** \] arg (=/usr/share/gpsshogi-data/data/kisen/01.kif)

  kisen file for opening book (unused unless kisen-id is specified)

- **-k** \[ **--kisen-id** \] arg (=-1)

  id of kisen record for opening book (enabled if positive)

- **--csa-file** arg

  csa file for opening book

- **--opening-file** arg

  file for opening book (used for normal games)

- **--no-opening-book**

  do not use opening book

- **-m** \[ **--book-moves** \] arg (=30)

  maximum depth traced in book

- **--enable-determinate-book** arg (=0)

  if a specified value (N) \> 0, a move is selected among the top N weighted moves with a probability propotional to each move's weight (default 0 \[disabled\])

- **--weight-initial-coef** arg (=16)

  weight coefficient to the top moves, which is used to filter moves only for the initial one.

- **--weight-coef** arg (=10)

  weight coefficient to the top moves, which is used to filter moves except the initial one.

### Other options:

- **--benchmark**

  test search performance

- **--benchmark-single**

  test search performance

**--benchmark-more** arg (=0) number of problems for benchmark

- **--sleep-at-exit** arg (=0)

  seconds of sleeping at exit

- **--health-check**

  test whether data files are properly placed

- **-h** \[ **--help** \]

  produce help message

- **-v** \[ **--verbose** \]

  produce verbose output

- **--version**

  show version info

## COPYRIGHT

Copyright © 2003-2011 Team GPS. osl wordsize 64 gcc 4.9.1