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Dimitri Borisovich Gurevich vs Dmitry Gordievsky
National Open (2017), Las Vegas USA, rd 3, Jun-17
English Opening: Symmetrical Variation. Hedgehog Defense (A30)  ·  0-1


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Kibitzer's Corner
Premium Chessgames Member
  Fusilli: Insanely complicated game. Black's play was extremely dynamic, though White was objectively better most of the game. In the end, White's defense got pretty difficult to sustain. The computer finds fault with Gurevich's defense, but again, it was difficult to sustain for a human.
Premium Chessgames Member
  perfidious: White did not manage to cut the Gordian knot.

The hidden dynamism of the Hedgehog had its say in the end, as so often.

Premium Chessgames Member
  Fusilli: <perf> I thought the Hedgehog required ...a6, meaning that the Hedgehog structure arises from the pawns on a6, b6, d6, e6. Preferably with the queen's knight coming out through d7, not c6.

Here's an interesting article on it with, coincidentally, an example from a Gurevich game (Gurevich handling black).

Jun-24-19  SChesshevsky: <Fusilli...I thought the Hedgehog required...a6...> After 8.Qxd4 black can go for the standard ...a6 ...Nd7 structure. But can also go for a more active ...Nc6. The idea is getting usually Qf4 then can play ...Qb8 possibly exchanging queens with ...Na5 clearing the long light diagonal at some point. But also possibly going for more by gaining position by kicking around whites sometimes misplaced queen. This with white sometimes having trouble coordinating with his knights can cause himself some difficulties. Here some of those ideas seem applicable as well as I think a hedgehog in Carlsen's first win against Kramnik.
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  perfidious: Circa 1997, I played the white side of a Hedgehog featuring the idea of 1...Nc6 2.Qf4 Qb8, omitting ...a6. Never got much and it was soon drawn.
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