Join the debate at #bbcafcon2015published at 17:14 Greenwich Mean Time 1 February 2015
James Earl Kiawoin:, external If there will be drama in this game, it will be more horrible passing and schoolboy defending.
Bony heads in two goals, Gervinho with a third
Soudani stabs in for Algeria
Ivory Coast play DR Congo in semis
Ghana beat Guinea 3-0 earlier
Chelsea's Atsu scored twice
Ghana next play Equatorial Guinea
James Gheerbrant
James Earl Kiawoin:, external If there will be drama in this game, it will be more horrible passing and schoolboy defending.
You wouldn't bet against them adding a third today...
Kevin Constant, who has been disappointing for Guinea, is hooked. Red Bull Salzburg midfielder Naby Keita replaces him.
Wakaso Mubarak is enjoying himself out there. He's made a few crunching tackles today, but he demonstrates real finesse with a lovely long pass straight into the stride of Asamoah Gyan. Baissama Sankoh does well to force him wide.
It's Ghana on top at the start of this period. Wakaso Mubarak whips a decent free-kick into the box, which keeper Naby Yattara unconvincingly punches clear.
Guinea midfielder Fode Camara has committed a few dodgy tackles today, and when he brings down Asamoah Gyan to prevent him haring onto a loose ball, the referee has had enough and takes his name.
Gyan blasts the free-kick straight into the wall.
Good work by Guinea's Abdoulaye Cisse down the right allows the normally-influential Ibrahima Traore to shape a cross from the corner of the area, but Abdoul Camara can only nod innocuously over the top under pressure.
Back under way in Malabo. We've had plenty of drama in the quarter-finals so far - can Guinea provide some more?
Well, well. Guinea were given a lifeline in this competition with the drawing of lots to qualify from their group, but they've failed to grasp it here.
Ghana's early goal seemed to knock both sides off their stride, and in truth the Black Stars barely threatened thereafter, and then on the stroke of half-time, calamitous defending gifted them a second goal.
Guinea haven't scored two goals in an Afcon match since 2012. They'll have to repeat that feat to get back into this match.
Kwasi Boafo:, external I pray Ghana doesn't do a Congo. A very sluggish game.
James Earl Kiawoin:, external Absolutely unbelievable...terrible clearance. My five year old nephew would have cleared that with ease.
And that's half-time. Ghana have barely got out of third gear, but they find themselves in a comfortable position at half-time, abetted by some awfully sloppy play from Guinea. We had a huge upset and a dramatic comeback yesterday - you wouldn't bet on it here.
Striker Idrissa Sylla, whose injury was possibly the source of the apparent discombobulation in the Guinea ranks there, is replaced by Mohammed Yattara.
Nick Cavell
BBC Sport at Estadio de Malabo
"Congo went 2-0 and we thought that was that - we know there are comebacks. However, from what we have seen here Guinea do not seem to be able to get on the ball and create anything. There is nothing happening between defence and attack. They just cannot seem to create any forward momentum. I hope they can pick themselves up at half time."
Guinea have shot themselves in the foot here. From a throw-in in their own half, Djibril Paye plays the ball back to centre-back Baissama Sankoh, he slices his attempted clearance horribly and the ball trickles straight into the path of Kwesi Appiah, who slips it under Naby Yattara.
Ghana have barely merited it, but they're 2-0 up and cruising now.
Mr Hammond:, external Guinea need to calm down or they'll not finish with 10 players.
That's probably the clearest chance we've had since the goal. Kwesi Appiah finds Asamoah Gyan in plenty of space on the edge of the box, the Guinea defenders appeal in vain for a flag that doesn't come, but the Ghana striker places a tame finish straight into the gloves of Naby Yattara. Had more time than he realised there.
Nick Cavell
BBC Sport at Estadio de Malabo
"Guinea have created nothing and it has been disappointing from them so far. You would have thought they would have tried to get back after conceding very early but they have not been in the game at all."
It's difficult to say who's really on top in this sluggish match, with both sides turning the ball over far too easily. Ghana are the latest to squander possession in midfield after a good challenge by Rahman Baba.