Chess on an Infinite Plane (hitthepin - captaintugwash)

I've never seen a dispute, but if the players don't resolve it themselves then I suppose I would need to. Check (here for the rules) normally used for games by online correspondence. But I've let opponents take back moves if they're posted quickly, and others have done the same for me. However for tournament and prize games, the rules are always applied strictly. Also this game has the exception that time control is 1 move per day with a bank of 21 days.

game so far:

1.N(6,3)...H(8,12)
2.R(10,0)...H(5,9)
3.(4,4)...(7,6)

That's good, I wouldn't want either of us to be forced to make a bad move thanks to unusual notation. But I'll always respect mod's call. There comes a point where it's a take-back rather than a correction, that'll be for him to decide.

 4... C(11,7)

 Um no, you might wanna wait for the board. There isn't a pawn on (10,15), and if you're trying to grab the pawn on (13,15) then you moved the rook to the wrong square on your previous move. I did move fast so I'm happy to go back.

Mod should set board up after 4. R(12,0) and wait for hitthepin's confirmation.

That's fine, then we'll continue from 4. R(13,0).

I'll wait for mod to post the board before I respond.

5.Rx(10,15) is not a legal move, so the board stands as this (let me know if I missed something):
4.R(12,0)...C(11,7)

(White to move)

{diagram removed}

White wanted to play 4. R(13,0), not R(12,0). I'm happy to allow his intended move, only I don't wish to play 4... C(11,7) in reply. I need to have a look at the board.

Oh, I accepted the R(12,0) because Black then made a legal next move. But since you both agree to 4.R(13,0) then the game is here. It's actually way more interesting with this sequence.

3.(4,4)...(7,6)
4.R(13,0)

4... H(5,6)

5... Q(4,24)