Checkers game types
===================

Syntax:
-------

<board> :: 6|8|10
<gtype> :: [S]<board>[K][R][B|W]
<rtype> :: <board>[R]

<coords> :: <coor>-<coor>[-<coor>]*    // from-to-...
<move>   :: <coords>[/<eval>[/<time>]] // e.g: a1-c3-e5/0/10.5

(lower case letters OK)

Semantics:
----------

6 8 10: 6x6 8x8 10x10 boards

S     : Synchro mode: two games are played simultaneously. The match
        result is the average result of both games.

K     : Komi game. Both players have to send the expected game result
        (in view of the player to move) together with the first move.
        The komi value is then calculated as the average of both values
        in view of black and colors are assigned accordingly. If both
        parties report the same value, colors are chosen randomly.
        Black wins if his score is > komi, the game is a draw if 
        score = komi, otherwise White wins.

        Example:

           Suppose White is to move in the initial position
           Player 1 reports +4 (for White!)
           Player 2 reports +3 (again for White!).
           komi = - (+4+3)/2 = -3.5
           Player 1 is assigned White, since he thinks White is better.
           Player 2 plays Black.
           White wins if his advantage is more than 3.5.

R:   Random game. The game begins with a random starting position.

B|W: Color preference of the asking player. Only meaningful in non-komi,
     non-random games.

If no K,R,B,W qualifier is given colors are assigned randomly and komi
is set to 0.

Examples:

8      :  8x8 checkers game. Random colors. komi = 0.
10B    :  10x10 checkers game. The requesting player wants to play black.
sR     :  Synchro game starting with a random position.
6KR    :  6x6 komi-random game. A random starting position is
          is drawn and the players are asked for their result estimate.
          One game is played.