📄 usage.htm
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<h1>Table of contents:</h1>
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<li><a href="#Rules">Rules</a>
<li><a href="#UserInterface">User Interface</a>
<menu>
<li><a href="#BoardPanel">Board Panel</a>
<li><a href="#InfoPanel">Info Panel</a>
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<li><a href="#GameMenu">Game Menu</a>
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<li><a href="#GameNew">New</a>
<li><a href="#GameAbort">Abort</a>
<li><a href="#GameSavePosition">Save Position</a>
<li><a href="#GameSaveGame">Save Game</a>
<li><a href="#GameLoadPosition">Load Position</a>
<li><a href="#GameExit">Exit</a>
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<li><a href="#ActionsMenu">Actions Menu</a>
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<li><a href="#ActionsHint">Hint</a>
<li><a href="#ActionsSwitchSides">Switch sides</a>
<li><a href="#ActionsUndo">Undo</a>
<li><a href="#ActionsForceMove">Force Move</a>
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<li><a href="#OptionsMenu">Options Menu</a>
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<li><a href="#OptionsSearchSettings">Search Settings</a>
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<li><a href="#HelpMenu">Help Menu</a>
<li><a href="#FAQ">FAQ</a>
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<li><a href="#HowtoUseTheMouse">How to place discs?</a>
<li><a href="#DoubleMoves">What about those strange board changes?</a>
<li><a href="#TimeUpdates">How is the remaining time measured?</a>
<li><a href="#TimeTrouble">What does it mean "Timed out"?</a>
<li><a href="#OtherPrograms">Other Othello programs.</a>
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<li><a href="#FairWarning">A fair warning.</a>
<li><a href="#AboutMe">A little about the author.</a>
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<h2><a name="Rules">Rules of Combat</a></h2>
<p> Othello or Reversi is played by two players, namely the
Black and the White. They place double sided discs on a board, each disc has
one of its side colored black and the other white. The player in turn must
place one disc on the board, with his own color facing up. A disc can only
be placed if there is an opponent's piece, or a row of opponent's pieces,
that are surrounded by your discs. All of the opponent's discs between your
discs are then flipped up side down to your color. One can capture discs in
horizontal, vertical and diagonal lines even simultaneously. Thus it is
possible to flip 18 discs in a single move, tough it is not certain that
this is advantageous. </p>
<p>The object of the game is to maximize one's final disccount.
The player with the most discs is declared the winner. The two players move
consecutively, if one has no legal moves than he must pass, otherwise moving
is compulsory. The game ends when there are no legal options for either
player, this may happen even if the board isn't filled. </p>
<p>Unlike in chess, the right for the first move belongs to
Black, however it is more advantageous to play White. Although the final
disccount defines the winner, during the game this has no importance what so
ever.</p>
<cite>"A minute to learn a lifetime to master"</cite>
<br><a href="#TOC">top</a>
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<h2><a name="UserInterface">User Interface</a></h2>
<h3><a name="BoardPanel">Board Panel</a></h3>
<p>For your convenience, along the edges of the board you will
find the name of the rows and columns, also all legal moves for the side in
turn is highlighted.</p>
<h3><a name="InfoPanel">Info Panel</a></h3>
<p>Using a simple notation, the black player is noted with the
plus sign while the white with the minus sign. For example, +d4 means a move
for the black player on square d4; also, a game value of -34 means an expected
outcome with a discdifference of 34 discs in the favor of the white player.
An exclamation point means that a full depth search was performed and the game
value vas precisely determined. The panel displays some data about the search
and the game. These are the side in turn, the all moves played to this moment,
the number of nodes visited during analysis, number of hits in the transposition
table, the ratio between these two, number of null window research, search
depth, and some other technical data. <strong>You can safely ignore this panel
and still enjoy the game!</strong></p>
<br><a href="#TOC">top</a>
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<h2><a name="GameMenu">Game Menu</a></h2>
<h3><a name="GameNew">Game/New</a></h3>
<p>Starts a new game, if one is already started then a
confirmation is required. You are given the choice between playing Black or
White.</p>
<h3><a name="GameAbort">Game/Abort</a></h3>
<p>During a game, you can use the command to abort the game.</p>
<h3><a name="GameSavePosition">Game/Save Position</a></h3>
<p> Saves the current position, for later analysis.</p>
<h3><a name="GameSaveGame">Game/Save Game</a></h3>
<p>Records on your hard disc, all moves made, in an easily
readable ASCII format, for your bookkeeping purposes. </p>
<h3><a name="GameLoadPosition">Game/Load Position</a></h3>
<p>Loads a previously saved position, you are given the choice
of playing Black or White.</p>
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