Van Wely, L. (2647) - Topalov, V. (2801) [D15], Corus A, Wijk aan Zee (4) 2006 (Boris Schipkov, 21.01.2006)
Slav Defence D15. Variation 4...a6. (by Boris Schipkov, 5.12.2000)
Olsen, H. - Schipkov, B. [D15], Kecskemet 1993 (Notes by Boris Schipkov, 14.06.2001)
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© 2000-2006 Boris Schipkov
