The Kenosha Chess Association, Inc. is a nonstock corporation registered with the state of Wisconsin and organized exclusively for charitable, religious, educational, and scientific purposes.
The association is registered with the IRS as a Non-Profit/Tax-Exempt Organization, and has an assigned EIN number from the IRS.
The assocation is operating as a 501(c)(3) organization and, as such, all donations are tax-deductible. Consult with your tax advisor as to the tax deductibility of your donation.
The assocation has not filed Form 1023 with the IRS to request a determination letter of tax-exempt status. Per IRS Publication 557, organizations normally having annual gross receipts of not more than $5,000 that meet the requirements of section 501(c)(3) are not required to file Form 1023. Here's the reference.