Green corner strategy

Remember, you want to isolate two white marbles on the ring the first marble is placed and on a neighboring ring.

You leave the board like this:

  

N = marble of free choice

nn = ring of free choice

First marble placed on c1 or d1:

Your opponent You
1. Nc1/d1,g1 2. Nd1/c1,f1
3. xd1Nb1 4. Na1,e1
5. xa1Nc1 6. Nd1,e2
7. xd1Nb1 8. Na1,d2
9. xa1Nc1 10. Nd1,d3
11. xd1Nb1 12. Wa1,c2
13. xa1Nc1 14. Wd1,b1 x Wc1, Wd1

First marble placed on a3 or a4:

Your opponent You
1. Na3/a4,g1 2. Na4/c1,b5
3. xa4Na2 4. Na2,c6
5. xa1Na3 6. Na4,c5
7. xa4Na2 8. Na2,b4
9. xa1Na3 10. Na4,c4
11. xa4Na2 12. Wa2,b3
13. xa1Na3 14. Wa4,a2 x Wa3, Wa4

The other green areas are only flipped cases.