mines: documentation and chronometric control of supernatural apparitions

1 files changed, 8 insertions, 0 deletions

diff --git a/sys/src/games/mines/mines.c b/sys/src/games/mines/mines.c
index 6d90057a4..d9d15ce18 100644
--- a/sys/src/games/mines/mines.c
+++ b/sys/src/games/mines/mines.c
@@ -398,6 +398,14 @@ void main(int argc, char **argv) {
 	} ARGEND
 
 	if(argc > 0) Usage();
+	
+	{
+		Tm *tm;
+		
+		tm = localtime(time(0));
+		if(tm->mon == 3 && tm->mday == 1)
+			UseGhost = !UseGhost;
+	}
 
 	if(initdraw(nil, nil, "mines") < 0) {
 		fprint(2, "%s: can't open display: %r\n", argv0);