In chess engine mode, the chess engine continues to check moves for legality but does not participate in the game. You can bring the chess engine into the game by selecting ‘Machine White’, ‘Machine Black’, or ‘Two Machines’.
In ICS mode, the moves are not sent to the ICS: ‘Edit Game’ takes
XBoard out of ICS Client mode and lets you edit games locally.
If you want to edit games on ICS in a way that other ICS users
can see, use the ICS examine command or start an ICS match
against yourself.
pieceMenu
option.
Selecting ‘Edit Position’ causes XBoard to discard
all remembered moves in the current game.
In ICS mode, changes made to the position by ‘Edit Position’ are
not sent to the ICS: ‘Edit Position’ takes XBoard out of
‘ICS Client’ mode and lets you edit positions locally. If you want to
edit positions on ICS in a way that other ICS users can see, use
the ICS examine command, or start an ICS match against yourself.
(See also the ICS Client topic above.)
<tag-section> ::= <tag-pair> <tag-section> <empty> <tag-pair> ::= [ <tag-name> <tag-value> ] <tag-name> ::= <identifier> <tag-value> ::= <string>
See the PGN Standard for full details. Here is an example:
[Event "Portoroz Interzonal"] [Site "Portoroz, Yugoslavia"] [Date "1958.08.16"] [Round "8"] [White "Robert J. Fischer"] [Black "Bent Larsen"] [Result "1-0"]
Any characters that do not match this syntax are silently ignored. Note that
the PGN standard requires all games to have at least the seven tags shown
above. Any that you omit will be filled in by XBoard
with ‘?’ (unknown value), or ‘-’ (inapplicable value).
-variations
command-line option is switched on,
you can start a new variation by holding the Shift key down while
entering a move not at the end of the game.
Variations can also become the currently displayed line by
clicking a PGN variation displayed in the Comment window.
This can be applied recursively,
so that you can analyze variations on variations;
each time you create a new variation by entering an alternative move
with Shift pressed, or select a new one from the Comment window,
the current variation will be shelved.
‘Revert’ allows you to return to the most recently shelved variation.
The difference between ‘Revert’ and ‘Annotate’
is that with the latter,
the variation you are now abandoning will be added as a comment
(in PGN variation syntax, i.e. between parentheses)
to the original move where you deviated, for later recalling.
The Home key is a keyboard equivalent to ‘Revert’.
In most modes, ‘Backward’ only lets you look back at old positions; it does not retract moves. This is the case if you are playing against a chess engine, playing or observing a game on an ICS, or loading a game. If you select ‘Backward’ in any of these situations, you will not be allowed to make a different move. Use ‘Retract Move’ or ‘Edit Game’ if you want to change past moves.
If you are examining an ICS game, the behavior of ‘Backward’
depends on whether XBoard is in Pause mode. If Pause mode is
off, ‘Backward’ issues the ICS backward command, which backs up
everyone's view of the game and allows you to make a different
move. If Pause mode is on, ‘Backward’ only backs up your local
view.
If you are examining an ICS game, the behavior of Forward
depends on whether XBoard is in Pause mode. If Pause mode is
off, ‘Forward’ issues the ICS forward command, which moves
everyone's view of the game forward along the current line. If
Pause mode is on, ‘Forward’ only moves your local view forward,
and it will not go past the position that the game was in when
you paused.
In most modes, Back to Start only lets you look back at old positions; it does not retract moves. This is the case if you are playing against a local chess engine, playing or observing a game on a chess server, or loading a game. If you select ‘Back to Start’ in any of these situations, you will not be allowed to make different moves. Use ‘Retract Move’ or ‘Edit Game’ if you want to change past moves; or use Reset to start a new game.
If you are examining an ICS game, the behavior of ‘Back to
Start’ depends on whether XBoard is in Pause mode. If Pause mode
is off, ‘Back to Start’ issues the ICS ‘backward 999999’
command, which backs up everyone's view of the game to the start and
allows you to make different moves. If Pause mode is on, ‘Back
to Start’ only backs up your local view.
If you are examining an ICS game, the behavior of ‘Forward to End’ depends on whether XBoard is in Pause mode. If Pause mode is off, ‘Forward to End’ issues the ICS ‘forward 999999’ command, which moves everyone's view of the game forward to the end of the current line. If Pause mode is on, ‘Forward to End’ only moves your local view forward, and it will not go past the position that the game was in when you paused.