Here’s the group photo, with a little photoshop enhancement:
Here’s the same photograph with numbers imposed to aid identification:
2 - Ulf Andersson 4 - Felix Izeta Txabarri 7 - Zsuzsa (Susan) Polgar 9 - Maia Grigoryevna Chiburdanidze 11 - Miguel Illescas Cordoba 13 - Francisco Javier Ochoa De Echaguen 14 - Antoly Yevgenyevich Karpov 15 - Andrei Yurievich Sokolov 16 - Ljubomir Ljubojevic 19 - José Luis Fernández All ten of the participants of the masters section of the tournament have been identified then. Thanks <twinlark> for (9) and <PaintMyDragon> for (4, 11, 13, 15, 16).
And to finish, the cover photo from Jacque (No 223, Aug 1987), a contemporaneous Spanish language chess magazine.
Also in <Jacques>, is this picture of <Antonio Medina>, although he is not mentioned in the text (that I could find):