Richard Costigan
United States of America
FIDE ID: 2001632
Birth in 1959
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| Robert E Byrne | Richard Costigan | View |
| J. Hodgson | Richard Costigan | View |
| Richard Costigan | Norman Rogers | View |
| Richard Costigan | Orest Popovych | View |
| Gildardo Garcia | Richard Costigan | View |
| Michael Shahade | Richard Costigan | View |
| Richard Costigan | Raymond Stone | View |
| Richard Costigan | Bruce Rind | View |
| Lawrence Klein | Richard Costigan | View |
| Karl Dehmelt | Richard Costigan | View |
| Ricardo Szmetan | Richard Costigan | View |
| Richard Costigan | Luis A. Baquero | View |
| Richard Costigan | Ian T. Findlay | View |
| John T Pajak | Richard Costigan | View |
| Ian Thomas | Richard Costigan | View |
| Richard Costigan | Bryon Nickoloff | View |
| Raymond Stone | Richard Costigan | View |
| Michael Wilder | Richard Costigan | View |
| Roman Pelts | Richard Costigan | View |
| Richard Costigan | Lawrence A Day | View |