If you have access to the email accounts used on them, you could use the forgot password link.
Or you could open a ticket. If staff can determine the accounts really do belong to you, they should be able to close them.
https://support.chess.com/customer/portal/emails/new

Résultats de la recherche
Paal-Erik Thelle-Barbeau | Tromsø, Norway
Date d'inscription: 10 déc 2017
Paal-Erik Thelle-Barbeau | France
Date d'inscription: 29 mars 2016
Paal-Erik Thelle-Barbeau | Montréal, Canada
Date d'inscription: 24 déc 2013
Paal-Erik Thelle-Barbeau | France
Date d'inscription: 20 sept 2015
Paal-Erik Thelle-Barbeau | Montréal, Canada
Date d'inscription: 22 janv 2014