The room you would build — turn it, or read the flat plan.
one arena, any basement — spaces are normalized
unrolling the floor plan…
scale hint (never measured): “a football-shaped field — much longer than it is wide; any park stretch with two agreed end zones works”
Spot of the ball — wherever the last two-hand touch happened
landmarksuggested — improvise
Floats: it is wherever the two-hand touch occurred, and it is also where possession transfers on a failed third down.
drawn from 3 rules
Two-Hand Touch
playA down ends when a defender touches the ball carrier with two hands. There is no tackling.
Spotting the Ball
playAfter a down ends on a two-hand touch, the ball is placed at the yard line where the touch occurred. The next down begins from that spot.
Turnover on Downs
playIf the offense does not score by the end of the third down, the ball is turned over to the defense at the exact spot where the last down ended.
click anything else — every element cites the rule it's drawn from.