Free reversi software for linux

Games::AlphaBeta::Reversi is a Reversi position class for use with Games::AlphaBeta.

SYNOPSIS

package My::Reversi;
use base qw(Games::AlphaBeta::Reversi);

# implement drawing routine
sub draw { ... }

package main;
use My::Reversi;
use Games::AlphaBeta;

my ($p, $g);
$p = My::Reversi->new;
$g = Games::AlphaBeta->new($p);

while ($p = $g->abmove) {
$p->draw;
}

This module implements a position-object suitable for use with Games::AlphaBeta. It inherits from the Games::AlphaBeta::Position base class, so be sure to read its documentation. The methods implemented there will not be described here.

Rhino is an Othello/reversi game.
The goad is to have a very strong AI and useful as a learning tool for those who want to master the game.
What distinguish GRhino from most other Othello games is that GRhino will be targeted for experienced Othello players. Strong AI is the main focus with some additional good, useful features (like an endgame solver) is planned. The ultimate target strength of the AI is that it should be able to beat the best human player at the highest difficulty level. Beating Logistello (the strongest program available) is not in the plan.
Some important AI infrastructure has been finished. Pattern evaluator and open book are mostly done but still requires some further optimization and data file compression.
Multi prob-cut to speedup the AI is still missing so it still has a limit on its game strength but this mostly affects playing against other strong AI out there. The main focus for current development is about user interface and features. Currently finished parts include
- End game search. It can now solve the exact score (in about 20 sec on P-133) at around 15 empties and Win-Loss-Draw at a slightly higher number of empties.
- Move ordering.
- Start game from known openings.
- Display opening name.
- A decent pattern-based evaluation with parity knowledge.
- A decent open book with opening variations allowed.
- Browse IOS and GGS format game file.

GGTL is a library designed to make it easier to program games in C. Generic Game-Tree Library provides an AI that is able to play most 2 player strategic games.
Nim, Tic-Tac-Toe, Reversi (aka Othello), Connect-4 and Chess are all examples of games that can all be implemented using GGTL.
GGTL comes with game-specific extensions that enables it to play Nim and Reversi almost out of the box. Please see the documentation for details.
Enhancements:
- "clock()" is used as a fallback for sub-second timing if "gettimeofday()" is not found.
- An internal typedef was dropped, and a header declaration for a function that didnt exist was removed.
- Some build system refactoring was done.

Gridlock is a collection of 30 grid-based strategy board games for Linux, including Ataxx, Reversi, Checkers, Gomoku, Connect Four, and more. They are individually described in the "Games" section.

After launching the application, the game window will appear. Select the game you want to play from the "Game" popup menu in the upper right. Some games have different variations (board size, layout, etc); when one of those games are selected a "Variations" popup menu will appear from which you can select a variation.

The bottom right displays the color and status of the two players. Each players color is shown by a circle; the player whose turn it is has a filled circle. For games in which players have a score, the scores are shown next to the player labels. Popup windows underneath each players label allow you to specify whether each player is human or computer-controlled, and the difficulty of computer players. (Note that "Hard" and "Very Hard" computer opponents may take several seconds to make each move).

The rest of the window contains the game board. To make a move, click on the cell where you wish to place a piece. Some games require that you move from one cell to another; to do this first click on the cell you wish to move from, then click on the cell you wish to move to. (In some games such as Checkers you may be able to make a move containing several jumps; to do this click on each cell you wish to jump to in sequence).

For all games, cells that are legal moves will become highlighted when you move the mouse over them. A black dot indicates the position of the last move. If you are unable to make a move, you can pass by clicking the "Pass" button on the right. The "Restart" button will restart the game, requiring confirmation if a game is in progress.

The "Preferences..." menu item in the main Gridlock menu opens the Preferences window, which allows you to change the appearance of the game pieces, and to enable or disable the animation when they are captured. Game pieces can either be bitmap images chosen from the popup menus, or solid colors chosen from the color wells.

Games can be saved and restored using the "Save" and "Open" commands in the Game menu. Games are saved with their full move history, so you can save a game after it is finished, open it later, and undo moves back to the beginning.

The Edit menu contains Undo and Redo commands. Selecting Undo will back the game up to the last time it was a human players turn. There is no limit to how many moves can be undone. Selecting Redo will redo a move that was previously undone, but only if no new moves were made after the undo.

The Window menu contains commands to toggle the display of network and statistics drawers. The network drawer is described below and is primarily used to chat with your opponent during a network game. The statistics drawer shows a table listing all the moves that have been made in the current game, and information on the analysis performed during the last move made by a computer player.

kggs project is a interface for playing on the GGS.
kggs is a KDE interface for playing reversi. It is designed to play online, on the GGS (Generic Game Server), the server for Othello, Amazons, Checkers, Go, Hex, Chess, Dots+Boxes, Domineering, and Ataxx. It implements chat and Othello.
It will be a alternative for lion (the Windows client) and GGSA (the Java interface). The program has been designed to be easy and intuitive to use, and other games should also be easy to implement.
Enhancements:
- Initial Creation

AlphaBeta is a framework that implements MiniMax search with Alpha-Beta pruning and is designed to make it simple to create two-player zero-sum perfect information games in Objective-C.

Both fixed-depth and iterative search is supported.

I created this project using Xcode, and the project checkout also includes the Reversi and TicTacToe frameworks. These are used in AlphaBetas test suite. The Reversi framework is additionally used by Desdemona, a Reversi game using AlphaBeta for its AI.

JSothello is a Javascript/DHTML implementation of the board game "Othello", also called "Reversi". Runs in the browser with four challenging computer intelligence levels. Play human versus computer, human versus human or computer versus computer.
JSothello is a Javascript/DHTML implementation of the board game "Othello", also called "Reversi".
Othello is very easy to play. The board is a square grid of any size. The two players pieces are black or white. Each player must place a piece on the board adjacent to one of his opponents pieces so that another of his own pieces is on the other side of his opponents piece(s). In other words, the opponents piece(s) should be "sandwiched" between the players pieces. When that occurs, all such "sandwiched" pieces are changed to the players color.
The game ends when one player cannot make a legal move. The winner is the player with the most pieces on the board.
This version allows the user to play the computer, another human or watch the computer play itself. The computer players have four levels of "intelligence", each with different styles of play:
- "Only took a minute to learn": The computer chooses random (legal) moves.
- "Laughable": The computer picks (one of) the move(s) that will flip the most pieces.
- "Respectable": Plays like "Laughable" but tries to grab the edges and the corners whenever possible while keeping its opponent from being able to grab the edges and corners.
- "Took a lifetime to master": Plays like "Respectable" but adjusts its edge/corner bias as the board fills up, favors moves that flip pieces in more than one direction, tries to prevent moves that will allow the opponent to immediately reverse its gain and places pieces closer to the corners when possible.