If someone got stuck at the Pikachu Card, this is the way to do it without loosing any EP´s BUT, i couldnt do it without the use of the fourth master ball, so if someone could do it, u shall explain how to.

Well, i will explain it like this, the board has 16 squares, i will give a number to each one, to make it easier to you guys to understand it:

the Numbers are like this(each possition has a number):
1-2-3-4
5-6-7-8
9-10-11-12
13-14-15-16

Now the steps one by one with the number of the possition and what to do there:

1°: Throw a masterball to Butterfree (possition 13)
2°: Use pikachu vs Snorunt (possition 14)
3°: Throw a masterball to Shuppet (poss. 15)
4°: EP+2 (poss.16)
FIRST LINE! Three ep´s to assigne: (give 2 to pikachu (0->2)
(give 1 to butterfree (->1)
(Shuppet has his 2 eps yet)

5°: Use butterfree vs Poochyena (poss.12)
6°: Use Shuppet vs Monkey (poss.8)
7°: Use shuppet vs Spoink (poss.4)
LINE! Give the ep to Pikachu (now pikachu has 3, butterfree 0 and shuppet 0)

8: Catch the Masterball (poss.10)
9: Throw that masterball to Poliwag (poss.11)
10: Use Poliwag vs Vulpix (poss.9)
LINE! Give the ep to Butterfree (Pikachu has 1, Butterfree 1, shuppet 0 and poliwag 1)

11: Use Pikachu vs Pidgeotto (poss.7)
LINE! Give the ep to Shuppet

12: Take the EP+1 (poss.5)
give the ep to Butterfree that now has 2

13: Use Butterfree vs Diglett (poss.1)
LINE!
14: Use Shuppet vs Grimer (poss.6)
LINE!
15: Use Butterfree vs Tangela (poss.2)
LINE!
16: Use Poliwag vs Nosepass (poss.3)

LINE AND THATS IT! =)

I hope i helped someone, take care.