Figure 1. In this variation, the first bar remains the same 
as "variation #2", while in the second bar we have a 
new syncopation.

Figure 2. You can also syncopate the first beat of the 
pattern by a 16th note.

Musical examples:

Example 1. To play the five-note chords in this 
example, you must use right hand fingers 1, 2, 3 and 4 
for the upper voices of the chord, and the right hand 
thumb for the bass notes.

Example 2 uses very typical bossa nova "open strings" 
chord voicing.

Example 3 is a transcription of the guitar part plated by 
Oscar Castro Neves on the song "Brigas Nunca Mais" 
(Tom Jobim/Vinicius de Moraes), as recorded on the 
album "Elis e Tom" -- Philips, 1974.

It,s basically the "variation #3". but using short notes, 
and playing only the upper notes of the chord.