X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=views%2Frules%2FMarseille%2Fen.pug;h=503d51ea06c44acd820799520a3b68e80c47e772;hb=b955c65b942d09d24b5c3bed0d755d4f2f8f71f1;hp=221bd831a339ad4de4c82efae9ca2b6b73344ac1;hpb=dbcc32e95d526fe518ac866f7b3cdac546f1178e;p=vchess.git

diff --git a/views/rules/Marseille/en.pug b/views/rules/Marseille/en.pug
index 221bd831..503d51ea 100644
--- a/views/rules/Marseille/en.pug
+++ b/views/rules/Marseille/en.pug
@@ -18,18 +18,49 @@ p.
 h3 Basics
 
 p.
-	TODO: explain, every turn twice except if check on 1st turn, or
-	very first move in game.
-	En-passant: possible in any order if 2 ep squares,
-	otherwise has to be the first move.
-	OK even if opponent moved his pawn at subturn 1.
+	At the very first move of the game, white make only one move - as usual.
+	However, after that and for all the game each side must play twice at
+	every turn. There are two exceptions:
+
+ul
+	li.
+		If the first move gives check (maybe checkmate),
+		then a second move isn't played.
+	li.
+		If no move is available after the first move, then it's stalemate
+		and again, there is no second move.
+
+p.
+	About the PGN game notation: when a side plays two moves in a row,
+	they are separated (in order) by a comma in the PGN.
+	Example: 3.Na5,Bd3 e6,f4 (the two first are white moves,
+	the two others are black moves).
 
 figure.diagram-container
 	.diagram
-		| fen:r3kbnr/pp3ppp/3p4/4p3/8/8/PPPPPPPP/R1BQKBNR:
-	figcaption After the moves 1.Nc3 d6?? 2.Nd5 e5 3.Nxc7
+		| fen:r1bqkbnr/pppp1p1p/2n5/4p2p/4P3/5N2/PPPP1PPP/RNB1KB1R:
+	figcaption After the moves 1.e4 e5,Nc6 2.Qh5,Nf3 g6,gxh5
 
-h3 More information
+h3 En-passant capture
 
 p.
-	Possible starting point Wikipedia page ?
+	Capturing en-passant is allowed under certain conditions.
+	If the opponent moved a pawn allowing such a capture (once or twice),
+	then (to take it) you must capture en-passant at the first move of your turn.
+	After that, if (and only if) there is another en-passant capture available
+	you can play it on the second move.
+
+p.
+	Note: if a pawn 2-squares jump was made and then a piece landed at the
+	en-passant square at the second move, a pawn capture on this square
+	takes only the piece.
+	And, if a pawn advanced twice then en-passant capture
+	on its first movement is impossible (the pawn is now "too far").
+
+h3 More information
+
+p
+	| See for example the 
+	a(href="https://www.chessvariants.com/multimove.dir/marseill.html")
+		|	Marseillais Chess
+	|  page on chessvariants.com.