Recent changes to AboutScidFormat

Discussion for AboutScidFormat page

bstp — Tue, 23 May 2017 23:35:07 -0000

Hello,

You can't edit PGN files in a permanent way:

https://sourceforge.net/p/scid/wiki/AboutScidBases/#can-i-edit-pgn-files

Your only way out is to copy the modified game to a SCID database.

Sorry for your loss.

Discussion for AboutScidFormat page

sallette — Wed, 17 May 2017 16:06:06 -0000

hello, I opened a base in pgn format of games with no moves (only, names of players, elo, tournament...). I tried to complete this games, playing moves. I registered in replacing games in the file, ( I believe it). In fact, the moves were not registered, the games were not modified and I lost 3 hours of work. What did I made wrong ?

thanks

AboutScidFormat modified by bstp

bstp — Wed, 13 Jan 2016 19:28:44 -0000

--- v17
+++ v18
@@ -1,15 +1,3 @@
-##### Can I Edit PGN Files?
-
-In SCID, PGN files are read-only.
-
-More precisely, it is possible to modify a game in a PGN file, say by adding a variation to a game or by editing its headers, but the modification can't be written back to the file. The only way to preserve modifications brought to a game in SCID is by using a [ScidDatabase].
-
-Tip. If you already modified a game that is in a PGN file, copy it to [TheClipbase], then to a [ScidDatabase].
-As a design choice, the SCID creator, [ShaneHudson], decided to use a format for SCID to speed up search. So he joined the editing facilities to that format. We can thus say that SCID is a PGN reader.
-
-See also [HowToImportGames]
-
-
 ##### How Does SCID Store Chess Moves?

 [ShaneHudson] found how to store chess moves using _only one byte_, i.e. 8-bits. Representing 64 squares requires 6-bits (2^6 = 64), so in order to store a move (from square to square) you need 6 + 6 = 12-bits. Add 1-bit for promotion and you are at 13-bits.

AboutScidFormat modified by bstp

bstp — Wed, 13 Jan 2016 18:48:57 -0000

--- v16
+++ v17
@@ -1,10 +1,10 @@
 ##### Can I Edit PGN Files?

-In SCID, [PGN] files are read-only.
+In SCID, PGN files are read-only.

-More precisely, it is possible to modify a game in a [PgnFile], say by adding a variation to a game or by editing its headers, but the modification can't be written back to the file. The only way to preserve modifications brought to a game in SCID is by using a [ScidDatabase].
+More precisely, it is possible to modify a game in a PGN file, say by adding a variation to a game or by editing its headers, but the modification can't be written back to the file. The only way to preserve modifications brought to a game in SCID is by using a [ScidDatabase].

-Tip. If you already modified a game that is in a [PGN] file, copy it to [TheClipbase], then to a [ScidDatabase].
+Tip. If you already modified a game that is in a PGN file, copy it to [TheClipbase], then to a [ScidDatabase].
 As a design choice, the SCID creator, [ShaneHudson], decided to use a format for SCID to speed up search. So he joined the editing facilities to that format. We can thus say that SCID is a PGN reader.

 See also [HowToImportGames]

AboutScidFormat modified by bstp

bstp — Wed, 13 Jan 2016 18:48:29 -0000

--- v15
+++ v16
@@ -1,3 +1,15 @@
+##### Can I Edit PGN Files?
+
+In SCID, [PGN] files are read-only.
+
+More precisely, it is possible to modify a game in a [PgnFile], say by adding a variation to a game or by editing its headers, but the modification can't be written back to the file. The only way to preserve modifications brought to a game in SCID is by using a [ScidDatabase].
+
+Tip. If you already modified a game that is in a [PGN] file, copy it to [TheClipbase], then to a [ScidDatabase].
+As a design choice, the SCID creator, [ShaneHudson], decided to use a format for SCID to speed up search. So he joined the editing facilities to that format. We can thus say that SCID is a PGN reader.
+
+See also [HowToImportGames]
+
+
 ##### How Does SCID Store Chess Moves?

 [ShaneHudson] found how to store chess moves using _only one byte_, i.e. 8-bits. Representing 64 squares requires 6-bits (2^6 = 64), so in order to store a move (from square to square) you need 6 + 6 = 12-bits. Add 1-bit for promotion and you are at 13-bits.

AboutScidFormat modified by bstp

bstp — Wed, 13 Jan 2016 16:06:39 -0000

--- v14
+++ v15
@@ -10,7 +10,7 @@

 An optimal implementation of [Chess960](https://en.wikipedia.org/wiki/Chess960) requires an important revision of the SCID's core functionalities, e.g. the move generator, the GUI board, etc. The castling rules of Chess960's castling rules are programming challenges. If you're up to the task, please [ContactUs].

-Implementing Chess960 would also require a revision of SCID format. This not impossible to do, but not trivial either. The new format would need to be robust enough to serve the SCID community for a good while.
+Implementing Chess960 would also require a revision of SCID format. This not impossible to do, but not trivial either. The new format would need to be robust enough to serve the [ScidCommunity] for a good while.

 If you want a tool to manage your Chess960 games, try [Scidb](http://scidb.sourceforge.net/).

AboutScidFormat modified by bstp

bstp — Wed, 13 Jan 2016 16:06:14 -0000

AboutScidFormat modified by bstp

bstp — Wed, 13 Jan 2016 16:04:59 -0000

--- v12
+++ v13
@@ -6,9 +6,13 @@

 ##### Could It Implement Chess960?

-No, at least for a while. To be optimal, an implementation of Chess960 would require a revision of the SCID format. Changing the format is not trivial and would impact other projects created from SCID's codebase.
+No, at least for a while. 

-If you want a tool to manage your Chess960 games, try [Scidb](http://scidb.sourceforge.net/) and [report](ContactUs).
+An optimal implementation of [Chess960](https://en.wikipedia.org/wiki/Chess960) requires an important revision of the SCID's core functionalities, e.g. the move generator, the GUI board, etc. The castling rules of Chess960's castling rules are programming challenges. If you're up to the task, please [ContactUs].
+
+Implementing Chess960 would also require a revision of SCID format. This not impossible to do, but not trivial either. The new format would need to be robust enough to serve the SCID community for a good while.
+
+If you want a tool to manage your Chess960 games, try [Scidb](http://scidb.sourceforge.net/).

 ##### How Many Games Can I Store in One Database?

AboutScidFormat modified by bstp

bstp — Tue, 12 Jan 2016 18:35:27 -0000

AboutScidFormat modified by bstp

bstp — Tue, 12 Jan 2016 18:35:27 -0000

--- v10
+++ v11
@@ -8,7 +8,7 @@

 No, at least for a while. To be optimal, an implementation of Chess960 would require a revision of the SCID format. Changing the format is not trivial and would impact other projects created from SCID's codebase.

-If you want a tool to manage your Chess960 games, you could consider using [Scidb](http://scidb.sourceforge.net/)
+If you want a tool to manage your Chess960 games, try [Scidb](http://scidb.sourceforge.net/) and [report](ContactUs).

 ##### How Many Games Can I Store in One Database?