Why Part (ver. 2)

Main Riff(s)
      #1                    #2                        #3                #4
G-----------|-------------------------------|-------------------|---------------|
D-----------|-------------------------------|-------------------|---------------|
A-----------|-------------------------------|-------------------|---------------|
E-----------|-------------------------------|-------------------|---------------|
B-2-22-2-22-|-2-22-2-22-0-0-0-0-1-1-1-1-1-1-|-2-22-2-22-0-0-0-0-|-2-22-2-22-2-2-|

Intro
Main Riff #1
Main Riff #2

Pre-Chorus 
G-----------------|
D-----------------|
A-----------------|
E-6-6-6-6-6-6-6-6-|
B-----------------|

Main Riff #1

 Chorus/Solo
G-----------------------------------------|
D-----------------------------------------|
A-----------------------------------------|
E-6-6-6-6-6-6-6-6-6-6---------------------|
B---------------------6-6-6-6-6-6-6-6-6-6-|

Main Riff #3
Main Riff #3
Main Riff #1
Chorus
Main Riff #1
Solo
Main Riff #4
Main Riff #1

that's it it's hard to explain