+p.
+ PGN game notation: since there are two moves at each turn except on move 1,
+ a double move in the game is indicated as two comma-separated (ordered) moves,
+ as in 3.Na5,Bd3 e6,f4 (the two first are white moves,
+ the two others are black moves).
+ Sometimes a move gives check, or stalemate occurs after subTurn 1 :: just one move
+