Are both players OK with the 3-day move rule? Here's the formal rule:
Time control: Three days maximum per move, unless agreed otherwise. Once notified of an illegal or ambiguous move, the time spent correcting or clarifying the move must be within the three day day limit. If your opponent has not announced his move within the three day limit, request a reply. If a legal move is not announced within one extra day (24 hours), your opponent is a "no show" and he/she has forfeited the game. You record the game as a win.
Vacation time: Each player is allowed four vacation days (added to the 3-day move limit, for a total of 7 days for a move), and this is refreshed at every 40 moves. The player must announce it before using the extra time. Vacation days cannot be banked.
Rules:
The Pieces:
Black and White each have the following pieces (quantity and name):
1 king
1 queen
2 chancellors
2 rooks
2 bishops
2 knights
2 guards
2 hawks
24 pawns
All pieces move as in classical chess, with the "extra" three pieces moving as follows:
Chancellor (C) - Moves and captures as rook + knight.
Hawk (H) - Leaps exactly 2 or 3 squares in any orthogonal or diagonal direction. The leaping move means it can jump over other pieces.
Guard (G) - Moves and captures the same as a king but is not affected by check.
Pawns play the same and promote at the same rank as in classical chess. White pawns promote at rank 8, and black pawns promote at rank 1. Pawns can promote to chancellor, hawk, or guard in addition to queen, rook, bishop, or knight. Pawns may capture and be captured en passant with the same rules as in classical chess.
Board Setup:

Orange brackets identify the four "classical" corner squares (1,1), (1,8), (8,1), and (8,8).
There is no castling.
There is no fifty-move rule. Draws can only occur from stalemate, threefold repetition, agreement, or a proven case of insufficient material to force checkmate.
All other rules are the same as in classical chess.
Move Notation:
Numeric coordinates identify piece locations as (file#, rank#). Parenthesis are used around each coordinate. Three examples of a move notation:
1) A rook moving from (8,4) to (1,4):
R(8,4)-(1,4) or R(1,4)
2) A rook moving from (1,4) and capturing a piece on (0,4):
R(1,4)x(0,4) or Rx(0,4)
3) A pawn advancing from (-1,7) to (-1,6):
(-1,7)-(-1,6) or (-1,6)
silvertruck plays White. Good luck to both players!