All 
Someone out here put together the world's greatest Paydirt solitaire system, can't find the thread anymore. He (his first name is Joe, I don't have his last name) did this last fall. Anyway I'll reprint it here, I can't take any credit for it: 

For each team in the game, build a solitaire defense chart that looks like this: 

1 2 3 4 5 6 7 8 9 
10-15 (6) 
16-23 (3) 
24-28 (2) 
29-33 (1) 
34-35 (4) 
36-39 (5) 

If this doesn't format well here's what going on: 

On the left hand side are 6 ranges of dice throws. The number in parentheses show which range comes up the most (#1 - 29-33) vs. the least (#6 - 10-15). On the top are the 9 offensive plays an offense can call. For each offensive play, go through your teams defensive chart and assign each of the 6 paydirt defenses to one of the rows. Obviously you'll want to assign the team's best defense against the play to range 29-33, their next best to 24-28, their 3rd best to 16-23, etc. So for example against offensive play one (line plunge) a defense might look like: 

10-15 (6) E 
16-23 (3) C 
24-28 (2) F 
29-33 (1) B 
34-35 (4) A 
36-39 (5) D 

This is a piece of my actual chart for my homemade 2002 TB Bucs. After reviewing their defense, I determined their best defense against play 1 is B (makes sense); their 2nd best defense against play 1 is F, 3rd best is play C, all the way to worst against play 1 which is E (makes sense). 

Now what you do once the offense calls the play, the defense rolls the offensive dice to determine what defense they called against that play. So say you roll a 34, then here the Bucs call defense A against the other teams play 1. Then roll the offensive and defensive dice and run out the play as usual. 

There are three beautiful things about this system: 

1. The offense can't take advantage of holes in the solitaire defense system; i.e. any down and yard defensive system will obviously have to lean heavy towards run defenses on 3rd and 1; so the offensive player just calls a pass play. Using this system there are no holes; whatever play the offense calls the defense has a decent (but not overwhelming) chance of ending up with the right defense. You'll find yourself calling plays on the offense that are necessary in the given situation instead of what will "work" against the solitaire defense. And it will feel like you're coaching a real game as opposed to just always throwing on 3rd and 2 and always running on 3rd and 8 just to cheat the defense. 

2. With 34-35 being the 4th best range, there is still a decent chance that the defense will make the a mediocre call, so the offense isn't drastically afraid to chuck it long on 3rd and 15. In Joe's first version of the formula I think 34 was in the best range and 35 was in the 2nd best, so defense could get on one of those streaks where they just threw those 2 numbers and wiped out an offense. 

3. With this system you can tailor a defense based on whether the defense has a good blitz or not, and whether the offense has a good running QB or not. Teams with a good blitz may want to move it ahead of D or E on some plays; teams with bad blitzes can be set to not blitz at much. And against a team with a good running QB like Atlanta, maybe Vick has too many QTs for gains, so you don't want to blitz him much that afternoon, so you lower the blitz in your rankings. 

I played a handful of replay playoff games using my homemade 2002 charts and this solitaire system and let me tell you it worked fantastic. For the first time every in my paydirt solitaire playing career I felt like I was coaching a game, not calling arbitrary plays to beat a solitaire defensive chart. I had the Bucs beat the Eagles 13-10, in a game that showed that the Bucs defense was really super; the Raiders beat Tennessee something like 38-21 in a game that showed Tennesse couldn't stop the Raider short passing game; and then the Bucs womped the Raiders in the Super Bowl something like 27-3; which made me look like a genius at my Super Bowl party when I told everyone that the Raiders wouldn't be able to pass on the Bucs. (Now it seems kinda obvious, but if you think back, a lot of pundits thought the Bucs had no chance). 

You could extrapolate a chart like the above to call offensive plays; just put down and yards on the top, and 9 ranges on the left for each of the 9 offensive plays. You'd have to work out the math to come up with 9 dice ranges that make sense... 
