Update man file for multi-PV

diff --git a/fmax.6.pod b/fmax.6.pod
index 5319169..6acae53 100644 (file)
--- a/fmax.6.pod
+++ b/fmax.6.pod
@@ -57,6 +57,13 @@ to get correct display of the elephant and general pieces in shatranj.
 Note that to be able to play the chess variants,
 you will need xboard 4.3.14 or later.
 
+Fairymax supports multi-PV mode: by specifying a non-zero multi-PV margin in the
+Options -> Engine-Settings dialog of XBoard, Fairy-Max will not only print the
+principal variation for the best move, but also for every move that approaches
+the score of this best move to within the set margin.
+(If it does not find the best move on the first try, this might lead to printing
+of a few extra lines below the threshold.)
+
 The fmax.ini file from which Fairy-Max by default takes the piece and game definitions
 is a self-documenting text file,
 which contains instructions for how to define new pieces and chess variants.