extern Boolean bookUp;
extern int tinyLayout, smallLayout;
extern Boolean mcMode;
+extern int dragging;
+extern char variantError[];
void MarkMenuItem P((char *menuRef, int state));
char *CmailMsg P((void));
void SaveToBook P((char *text));
void HoverEvent P((int hiX, int hiY, int x, int y));
int PackGame P((Board board));
-Boolean ParseFEN P((Board board, int *blackPlaysFirst, char *fen));
+Boolean ParseFEN P((Board board, int *blackPlaysFirst, char *fen, Boolean autoSize));
void ApplyMove P((int fromX, int fromY, int toX, int toY, int promoChar, Board board));
void PackMove P((int fromX, int fromY, int toX, int toY, ChessSquare promoPiece));
void ics_printf P((char *format, ...));
int debug; /* [HGM] ignore engine debug lines starting with '#' */
int maxNrOfSessions; /* [HGM] secondary TC: max args in 'level' command */
int accumulateTC; /* [HGM] secondary TC: how to handle extra sessions */
+ int drawDepth; /* [HGM] egbb: search depth to play egbb draws */
int nps; /* [HGM] nps: factor for node count to replace time */
int supportsNPS;
int alphaRank; /* [HGM] shogi: engine uses shogi-type coordinates */
extern char *recentEngines;
extern char *comboLine;
extern Boolean partnerUp, twoBoards;
+extern char engineVariant[];
+char *EngineDefinedVariant P((ChessProgramState *cps, int n));
void SettingsPopUp P((ChessProgramState *cps)); // [HGM] really in front-end, but CPS not known in frontend.h
int WaitForEngine P((ChessProgramState *cps, DelayedEventCallback x));
void Load P((ChessProgramState *cps, int n));
void MakeEngineOutputTitle P((void));
void LoadTheme P((void));
void CreateBookEvent P((void));
+char *SupportedVariant P((char *list, VariantClass v, int w, int h, int s, int proto, char *engine));
/* A point in time */
typedef struct {