Unusual 2NT Examples

Board 4
West Deals
Both Vul
A K Q 7 6 5
A 8 7 6 5
10
8
3 2
K J 9
K Q J 5
K Q 4 3
N
WE
S
8 4
3 2
A 9 4 2
A J 9 6 5
J 10 9
Q 10 4
8 7 6 3
10 7 2
WestNorthEastSouth
112NT!2333
44PassPass
Pass   
  1. West will open 1 or 1.
  2. North will go 2NT for the majors.
  3. Only part scores available for either side. Who will win the fight?
4 by North