The case involves a dispute between the Bulgarian Chess Federation (BCF) and the European Chess Union (ECU), culminating in the BCF's expulsion from the ECU. The conflict arose from allegations of financial misconduct by the BCF, including fraudulent transactions and misrepresentation related to chess tournaments held in Bulgaria in 2014. The ECU accused the BCF of submitting false invoices, misrepresenting payments to the ECU, and using a Slovenian bank account linked to a Delaware-based company falsely associated with the ECU. The BCF denied wrongdoing, attributing the allegations to a malicious campaign. The ECU's General Assembly voted in October 2015 to expel the BCF, citing financial irregularities and non-cooperation. The BCF challenged the expulsion, arguing procedural flaws and unexhausted internal remedies. The case was brought before the Court of Arbitration for Sport (CAS), which dismissed the BCF's appeal. The CAS panel ruled that the BCF's challenge to an ECU Articles of Association amendment was inadmissible due to being filed too late. It also found the ECU's expulsion process fair, noting the BCF had opportunities to defend itself during the General Assembly. The panel upheld the ECU's right to expel members for just cause under Swiss law, emphasizing the need for compliance with association rules. The BCF's refusal to provide requested documents, despite evidence of financial irregularities, further justified the expulsion. The panel also questioned the credibility of the BCF's former president, Mr. Danailov, citing evasive testimony and lack of concern over financial discrepancies. The CAS decision affirmed the ECU's autonomy to enforce its rules and highlighted the importance of transparency and accountability in sports governance. The ruling underscored the balance between member obligations and governing body authority, ultimately dismissing the BCF's appeal and upholding the expulsion. The case reflects broader issues of governance and financial integrity within international chess organizations.