Riccio won the fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth and seventeenth FICGS Correspondence Chess World Championship.

In the world online tournaments of Freestyle chess ("Advanced chess", created by GM Garry Kasparov), Riccio won the first (2007) and the third edition (2010) of the FICGS Chess Freestyle Cup,[6] the final of Computer Bild Spiele Schach Turnier[7] (2008) and became the champion of the 8th PAL/CSS Freestyle Tournament[8] (2008), winning the prestigious tournament sponsored by the PAL Group in Abu Dhabi (United Arab Emirates).

[10] Infinity Chess has developed a special Elo classification for centaurs (man + computer),[11] which sees the first place right Eros Riccio (Sephiroth) with 2755 Elo points.

With the Italian national team Riccio also wins the second silver medal in the final of the "8th European Championship"[14] and the bronze medal in the final of the "9th European Championship".

[15] In July 2009 Riccio (Auryn) beats Rechenschieber,[16] the cluster of the Rybka team, a monster composed of very impressive 55 high-speed computers that function as a single powerful computer, and beats also Highendman,[17] which was the only one before him to beat the Rybka cluster.