HOW TO PLAY NFL STRATEGY
(Italics are used for new SFL rules ofr 2007-2008)
Pick a play card
There are 5 play books titled "Defense", "Runs", "Passes",
"Screens-Draw" and "Special Teams". Inside each playbook is the play
cards as defined by those categories. To select a play, right click on the
card and then choose "Select Play" or simply click and then Ctrl-S. That
will send the play to the View Window.
Place Defensive card over Offensive card
The VASSAL module will do this automatically for you.
Flip the Selector Bead
Click on the Selector Bead icon in the top menu. This is actually a D100
set of dice. The bead next to the view window doesn't move and is there
for cosmetic purposes only.
Read the yardage results
There are five small "yardage windows" showing, giving 15 possible
results for this combination of plays and defense. Find the proper
yardage window using the scale in this manner: The scale next to the
view window is used to read the D100 result. Read the scale from
bottom to top, so if a set of lines read "20" and the next line is "50", then
that range is 21-50 (1-20 was before the line, 51+ is beyond the line).
Read to the left following the line for that scale range to find the yardage
window for your Selector Bead D100 results. There are five windows
for all plays from scrimmage. Next to each window are numbers for
using dice for the game. These same numbers are written on the game
board next to the selector bead next to the corresponding range.
Read the correct yardage
Only one of the numbers in the yardage window is correct for your play.
It depends on whether you started the play in the center of the field, or
on the left or right hash mark. Look at the ball on the field and the
ball-marker slide that carries it. On the slide, there are two sets of
colored triangles, one set facing each way (on the left, is a black triangle;
in the center, red; on the right, blue). If you started the play with the ball
in the center of the field (red), read the red number in the yardage
window; if on the left (black), read the black number, etc.
Mark off the yardage and move ball right, left, or center
Slide the marker forward or back (Ctrl+left/right arrow for 10 yd
increments, Left/Right arrow for 1 yd increments) to show the new
correct yardage. Be sure and check the small square dot (hashmark dot)
that is just to the left of your correct yardage in the yardage window. If
that dot is black, move the ball to the left hashmark, Ctrl+[; if red, move
to center, Ctrl+], etc.
Advance the Time Clock
After each play the clock must be moved. Right click on the time clock
arrow. A menu will show a list of clock adjustments. Each play is
considered to take 12 seconds, or one mark on the clock.
Play with clock stopped- 12 seconds (one mark)
Hurry Up* play with clock running- 24 seconds (two marks)
Play with clock moving- 48 seconds (4 marks)
* An offense may run a “hurry up” offense in the last two minutes of the first half and the last four minutes of the fourth period or overtime period.
Timing Notes:
1. A kick-off with no return, and an extra point take no time.
2. If, due to a kick out-of-bounds, a second onside kick is attempted, the clock will only run 12 seconds total for both kicks
3. If there is a penalty on a kick-off, so that a second kick is necessary, the total time elapsed for the two kicks will be 12 seconds. If a third or fourth kick is required, another 12 seconds will elapse, and so on.
4. There is always time for one more play after a successful onside kick.
5. The clock remains stopped after all penalties, even if they are declined.
6. The clock stops on all changes of possession.
Running Out-of-Bounds to stop clock- If a play starts on the red hashmark and ends on either the black or blue hashmark, a player may run out of bounds to stop the clock for the next play. If a player does this, 5 yards are subtracted from the gain on the play.
Spiking the Ball- If the clock is running, a player may “spike the ball” to stop the clock. Normally, this takes 12 seconds (one mark) off the clock, and costs one down. However, if there is just 12 seconds left in the game, the spike will allow for one more play.
Time Outs
Three time outs allowed per team, per half. When a team calls for a time
out, the next play will run 12 seconds (one mark). Keep track of time outs
remaining on the appropriate indicators, Ctrl+[ or ] to adjust after clicking
on the number.
Two-Minute Warning/End of Game Notes-
1. If the clock is running with 36, 24, or 12 seconds remaining before the Two-Minute Warning, or before the end of any period, the offense may allow the clock to run down to two minutes, or may allow the period to expire. In these cases, the defense may call time-out if they have one remaining.
2. Any play started prior to the Two-Minute warning which ends after two minutes, is deemed to be over with 1:48 left on the clock (one mark after the two minute mark).
3. Even if the clock is running, as long as time remains on the clock, there is time to get another play off at the end of the game.
Set the clock before starting game
Set the clock to 15 (left arrow) before starting game and each new quarter.
Quarter ends when clock again reaches zero.
Recording the score
Keep track of quarter, down, score and time outs remaining on scoreboard
(Ctrl+] or [ after clicking on number to adjust). Use 10 yard marker on
edge of field as you would chain on sidelines to mark yards to go
(Ctrl+left/right arrow to move 10 yds, just left/right arrow to move it a
single yard).
Kick-off/Onside Kicks
Use special kick-off card. Kicking team inserts card for kick-off or onside
kick and operates probability selector, moving ball the resulting yardage.
Receiving team then operates selector to determine run back and lateral
field position. If a regular kick-off goes out of bounds the receiving team
automatically takes over 30 yards from the spot of the kick-off. A kick-off going to the back line of the end zone is an automatic touchback.
Onside Kick Notes:
1. By rule, if an on-side kick goes out of bounds on a team’s first attempt, the team incurs a five yard penalty. If an on-side kick goes out of bounds on the teams second attempt, the receiving team takes over the ball where it went out of bounds. If this happens the ball will be considered to have gone out of bounds 10 yards down field. The kicker decides which side of the field.
2. Unless the kick goes “out of bounds”, it is considered to be in play, even if the kick is less than 10 yards.
3. If the return reads “0" with “F-50%", then the returning team operates the probability selector again. If the number comes up 1 to 50 it is a fumble and the kicking team recovers at that point, otherwise it is the returning team’s ball.
Punts/Angle-Touch Punts
Use special card for punt and return. All punts are measured from the line
of scrimmage. If an angle/touch punt does not go out of bounds (OB), is
not downed (DN) or is not a touchback, use the punt return column to
determine the run back. All fair catches are considered to be on the red
for field position.
Long Return Notes: On kick and punt returns where “see below” is
indicated, the returning team operates the probability selector again.
Using that number the return is determined by the results in the big box
below the respective return column.
Field goals and extra points
Use special card. If the selector produces a 37, and your line of scrimmage
was the 37 or closer, then your kick is good. A missed FG may not be
returned. After a missed FG the defense takes over seven yards forward
from the line of scrimmage.
Free Kick after Fair Catch
A field goal may be tried after a fair catch. 10 yards are added to the kick shown on the card. A missed free kick gives the defense the ball from the point of the kick.
Blocked kicks
When a field goal or punt indicates “BLK” a percentage such as “9%” is
with it. In this case the kicker operates the probability selector again and
if the number, in this case, is 1 to 9 the kick is blocked. If a kick is
blocked, the ball is then returned using the punt return from -10 yards
from the line of scrimmage on punts and -9 yards on FG’s.
Fumbles
Kicking Plays- On kick, punt and onside kick returns in which an “F” appears, there is also a percentage- such as “18%”. In this case the returning team operates the probability selector again and if it is 1 to 18, then there is a fumble. All fumbles on these plays are recovered by the kicking team.
Plays from Scrimmage- On all other fumbles, the offensive team operates the probability selector again. If the number is 1 to 50 the defense recovers, if it is 51 to 100 the offense recovers. If the play carries to or over the goal line before the fumble (for example, 10F from the defense's 10 yard line), then it is a touchdown since the fumble did not occur until the runner crossed the goal line. A fumble recovered at the offense’s own goal line would be a safety if the offense recovers, or a touchdown if the defense recovers.
Interceptions
13i indicates an interception and return to within 13 yards of line of
scrimmage. Again, -17i indicates an interception and return 17 yards
beyond the line of scrimmage toward the offense's goal. A pass which is
intercepted beyond the ten yards of the end zone (37i from the defense's 5
yard line, for example) is ruled incomplete.
“Reviewing Interceptions”- When an interception occurs from a result in the “smaller boxes”- 41 to 50, or 76-80, it may be “reviewed” by the offensive team. In order to challenge a play a team must have a time out remaining or there must be less than two minutes left in the game or half after the play. However, they are limited to one successful challenge per half, and two attempts per half. To challenge a play the offense operates the probability selector again. If the number is 1 to 50 the interception is upheld and the offense is charged with a time-out. If the number is 51 to 100 the interception is overturned and the pass is considered incomplete.
Penalties
If the selector bead lands on a red line at 10,15, 25, 35, 50, 65, 75, or 85 a
penalty has occurred on the play. Flip the selector bead once again to
see what the play would have been. If the number is a red line on the
second flip it is read without a second penalty. Then, after the play has
been determined, including any other flips for fumbles or blocked kicks,
the offensive player inserts the special penalty card and flips bead to
determine the penalty.
Penalty Notes:
"O15" means a 15 yard penalty against the offense whereas "D5" means a 5 yard penalty against the defense.
“D fd” means the penalty results in an automatic first down.
“inc ld” means the penalty is a loss of down for the offense if the result was an incomplete pass.
“auto” means the penalty must be taken, because the flag was thrown before the play started. However, “auto” does not apply to special teams penalties.
“Nul” means off setting penalties.
“86 to 100 box”- When the number is 86 and above the penalty depends upon whether the play pass a run, a short pass, a medium pass, or a long pass. If it was on a pass the result includes an automatic first down. Special team penalties in this box should be treated as runs.
Special Team Penalty Notes:
On-Side Kick-Offs: No penalties occur on onside kicks because of red penalty lines. Only the penalties for kicking out of bounds applies.
On all other special team plays, a penalty may occur only on the first use of the selector bead. If this happens, then after the kick and return (if necessary) occurs, the kicking team operates the probability selector again to determine the penalty. An offensive penalty is charged against the kicking team, and a defensive penalty is charged to the receiving team. For rules on when the penalties are to be considered to have happened, and how to enforce them see the rules below...
Kick-Offs- All penalties are enforced as if they happened on the return. A penalty on the offense (the kicking team) is added to the run back. A penalty on the defense (receiving team) is deemed to have occurred at the mid way point of the run back.. Therefore, on a return of 22 yards the penalty on the defense is enforced from the point 11 yards ahead of where the kick traveled to. If the return is an odd number, reduce the penalty ½ yard to place the ball on a whole yard.
Punt and Angle-Touch Punt- With one exception, offensive penalties on a punt are considered to have happened at the line of scrimmage during the kick. And, with one exception defensive penalties on a punt are considered to have happened on the return against the returning team. The return penalties are enforced from the mid way point of the run back as explained above on kick returns.
The exception for offensive penalties is that “O 15 inc ld” is considered to have happened on the return against the kicking team and should be added to the run back.
The exception for the defensive penalties is the “D 15 fd” is considered to have happened on the kick (roughing the kicker). This penalty is enforced from the line of scrimmage and the kicking team is granted a first down.
Field Goals- All penalties on field goals are to be enforced from the line of scrimmage.
Penalties Enforced on Kick-Off
15 yard penalties on the defense on a field goal or touchdown, OR any penalty by the defense on a successful extra point will be enforced on the ensuing kick-off.
Penalties Leading to a Safety
If an “O 15 inc ld” occurs on an incomplete pass play which started on the 15 yard line or closer, OR if an “O 10" penalty occurs on a play started on the three yard line or closer, then the defense will score a safety.
Passes
"Inc" denotes incomplete pass -no hashmark dot is shown since next down
starts at the same point. The five long passes (X fly, Z fly, Z post, B fly
and 54 Y Go) may not be used on the opponent's 20 yard line or closer.
Short yardage defense