Sparring for seats in Sunday's polls are more than 20 political parties and coalitions, including the former ruling PAIGC party and its rival MADEM G15.
"There will be no winner with an absolute majority in these elections.
Under the current political system, the majority party or coalition appoints the government but the president has the power to dismiss it in certain circumstances.
That has led to political deadlock and infighting in the past.
The former army general then threw the country into further chaos in May 2022 when he sacked the government, helping delay local elections by months.
Persons:
Umaro Sissoco Embalo, Nuno Gomes Nabiam, Embalo, Edward McAllister, Angus MacSwan, Diane Craft
Organizations:
PAIGC, Thomson
Locations:
BISSAU, Guinea, Portugal, Bissau, South America, Europe