Dmitry Pavlovich Korshunov (1911-1983) - Soviet drafts player ( Russian drafts ), theorist. Bronze medalist of the 1945 USSR Championship. USSR master of sports . For 13 years he was the champion of the RSFSR in Russian drafts 1935-1948, the champion of Tyumen 1946.
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In the pre-war years, he became known as a theorist, developed a debut known as the Protection of the Holy - Korshunov . The opening tabia occurs after 1.cd4 fg5 2.bc3 gh4 3.cb4 de5 4.df6 eg5 (see the diagram). This exchange option was developed for Black by the Leningrad master Dmitry Korshunov in the pre-war era.
White's possible answers: 5. ba5 (the most investigated); 5.bc5.
Korshunov’s idea is to realize the weaknesses of the natural move 5.ba-5, which was followed by the answer: 5 ... bc5 6.ab2 fe7 7.gf4 gf6 8.dc3 ed6 9.cb4 hg7 10.ed4 (does 10.hg3 lead to defeat? 10 ... cb6! 11.a: e5f: d4 12.b: d6dc7 13.e: c5g: e3 14.f: d4 c: a1 +) 10 ... c: e3 11.f: d2 fe5 12.bc5 d: b4 13.a: c3 ab6 14.ab4 de7 15.bc5 (it’s much worse to continue 15.ba3, then maybe 15 ... cd6 16, ba5 bc5, and Black has an excellent position, as the checker sacrifice does not go through: 17 .ab4? c: aZ 18.a6 because of 18 ... gf4! and after 19.bc7 hg3! 20.f: h4 e3 21.d: f4 e: g3 no matter how white is beaten, it will follow 22 anyway. .. ef6, 23 ... f: b2 +) 15 ... b: d4 16.cb4 with approximate equality.
During the war, Korshunov was evacuated to Tyumen , worked at the Tyumen shipyard as an engineer in a secret workshop. The initiator of the Tyumen championship in 1946.
He returned to Leningrad in 1948, where he also became the champion of Leningrad. One of the rivals of Vasily Sokov.