HomepageRuben Fonseca Ruben Fonseca Follow Puzzles recently added by Ruben Fonseca See all puzzles added by Ruben Fonseca99Classification of organic compoundsRuben Fonsecasolved 25 timesSolve puzzle54QUALITY OBJECTIVESRuben Fonsecasolved 687 timesSolve puzzle108Quality objectivesRuben Fonsecasolved 683 timesSolve puzzleSee all puzzles added by Ruben Fonseca Popular puzzles created by Ruben Fonseca See all the popular puzzles created by Ruben Fonseca54QUALITY OBJECTIVESRuben Fonsecasolved 687 timesSolve puzzle108Quality objectivesRuben Fonsecasolved 683 timesSolve puzzle99Classification of organic compoundsRuben Fonsecasolved 25 timesSolve puzzleSee all the popular puzzles created by Ruben Fonseca