Richie Merced (リーチー・マーセーッド, Rīchī Māsēddo) is the eleventh Card Professor and another of Pegasus' adopted sons. He wielded a Black Duel Disk, proof of being the strongest card professor. He defeats Gekko Tenma, and is later defeated by Keith, who takes his Black Disk from him. He seems to care for no one but Pegasus. In a flashback to his past in chapter 27, Richie used to live rough on the streets before Pegasus gave him his Deck and taught him to Duel, making Richie respect and loyal to the man who saved him from his harsh life. He is last seen with Depre watching Yugi and his friends reunited on the KaibaCorp rooftop. Merced was the codename for Itanium, an IA-64 microprocessor developed jointly by Intel and Hewlett-Packard.