From MA or South of Nashua, NH:
  - Head north on Route 3
  - Take Exit 35 (Route 113)
  - At the end of the off ramp, take a right
  - Stay on this road for a few miles
  - When you get to the middle of Dunstable, the
    road takes a sharp 90 degree turn to the left
    (there will be a big white church and big brick building
    on the right for the town offices). Don't go left,
    instead, keep heading straight.
  - Continue on this road for another couple of miles  and you'll come to a stop sign at Main Dunstable Road- the fields are
    directly across the road from this stop sign.
From NH Seacoast or East of Nashua, NH:
West on Route 101 to Route 293 South
Route 293 South to Everett Turnpike/Route 3 South
Everett Turnpike becomes Route 3 South
Take Exit 5W (Rt. 111) towards Pepperell MA, keeping left at fork in ramp to get on Route 111A
Straight through a couple of lights
Go ~3 miles and Yudicky fields will be on the right behind a chain link fence right after some woods. It's right across from where Gregg Road  intersects with Main Dunstable Road/Groton Road.
There are two baseball fields at this field as well If you hit Pepperell, MA, you've gone too far. Turn around!
If you want to use Mapquest, use the intersection of Gregg Road and Main Dunstable Road in Nashua.