PROVIDENCE, R.I. � A former U.S. National chess master who organizes chess tournaments in schools in Greater Providence is accused of soliciting a 14-year-old Foster girl online and engaging in sex with her.

PROVIDENCE, R.I. � A former U.S. National chess master who organizes chess tournaments in schools in Greater Providence is accused of soliciting a 14-year-old Foster girl online and engaging in sex with her.

David J. Harris, 60, of 45 Taft Ave., in Providence�s East Side, is charged with indecent solicitation and third-degree sexual assault. He was arraigned on Tuesday and released on $10,000 with surety.

Harris was arrested early Tuesday morning after an investigation by Foster police and the state police Internet Crimes Against Children task force. State Police Maj. Todd Catlow said the investigation is continuing. The detectives are still reviewing evidence and computers from Harris and the girl.

And, after learning Thursday that Harris is said to be involved with chess in schools, Catlow said the police will be looking at his contact with other children.

The arrest started with an anonymous tip to the Foster police back in February.

A witness had noticed a 14-year-old girl posting in the adult dating Website Okcupid.com, according to an affidavit by state police Detective Brian Macera. In the girl�s online profile,� she said: �The most private thing I�m willing to admit,� was that a 58-year-old man had performed oral sex on her, the affidavit said.

Foster Patrolman Tyler Domingos determined the girl�s identity, the affidavit said. After realizing the incident occurred in the man�s Providence home, the Foster police notified the state police.

The girl told police that she�d first communicated with Harris on Chat-avenue.com/teenchat.html for about two weeks, the affidavit said. This chat room is dedicated for teenagers. The girl told police that Harris contacted her in mid-2013. She said she told him that she was 14, and he responded not to tell anyone because he was 58, the affidavit said. They eventually spoke over the phone or in chat sessions, and eventually last fall, they agreed to meet in person, according to the affidavit.

The girl said that he picked her up at her home in Foster and drove her to his residence on Taft Avenue in Providence. There, he performed a sex act on her, and �asked her not to tell anyone about their sexual interaction due to her age,� the affidavit said.

Using a search warrant, the state police seized Harris� computer equipment and cell phone.

On his LinkedIn page, Harris calls himself a �problem solver,� with interests in chess and information technology and services. He writes that he is a �creative thinker who enjoys unraveling the fabric of ethereal entities, re-threading them anew, weaving new designs, and finding the needle in the haystack.�

Harris states that he is the director of Blackstone Chess, which merged with CMC Academy last fall.