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The Frankenstein–Dracula Variation is a chess opening, usually considered a branch of the Vienna Game, but can also be reached from the Bishop's Opening. The opening involves many complications; however, with accurate play the opening is playable for both sides. The variation was given its name by Tim Harding in his 1976 book on the Vienna Game, in which he said that the bloodthirstiness of the character of play was such that "a game between Dracula and the Frankenstein Monster would not seem out of place." The line is seen extremely infrequently in top-level play. Ivanchuk used the opening against Viswanathan Anand in Roquebrune in 1992 in a game that ended as a draw. Alexei Shirov had also played this in a simultaneous exhibition with black in Canada 2011. ==Annotated moves== 1. e4 e5 2. Nc3 Nf6 3. Bc4 :Another common way of reaching the same position is 1.e4 e5 2.Bc4 (Bishop's Opening) Nf6 3.Nc3. 3... Nxe4 :This is the move that defines the Frankenstein–Dracula Variation. White cannot of course win material immediately, since 4.Nxe4 brings 4...d5. 4. Qh5 :4.Nxe4 d5 is considered to give Black no problems. 4.Bxf7+ Kxf7 5.Nxe4 is considered good for Black as long as he avoids 5...Nc6 (5...d5) 6.Qf3+ Kg8 7.Ng5! and White wins (7...Qxg5 8.Qd5#). 4.Qh5 threatens Qxf7#, a threat that White continues to renew in this line. 4... Nd6 :This move is the only good response to White's dual threats against f7 and e5; 4...Ng5 would be met by 5.d4 Ne6 6.dxe5 with some advantage. Also possible is 6.d5, when 6...g6 loses to 7.dxe6, as in Böök–Heidenheimo 1925.〔(Böök–Heidenheimo, 1925 )〕 Instead, 6.d5 Nd4 led to very complicated play in Kis–Csato, Hungarian Team Championship 1993.〔(Kis–Csato, Hungarian Team Championship 1993 )〕 5. Bb3 :Swedish grandmaster Ulf Andersson recommended 5.Qxe5+ Qe7 6.Qxe7+ Bxe7 7.Be2, claiming that White has some advantage. (See Harding's 1998 column cited below.) 5... Nc6 :5...Be7 (returning the pawn) is a quieter alternative, for example 6.Nf3 Nc6 7.Nxe5 0-0 8.0-0 Nxe5 9.Qxe5 Bf6 10.Qf4 Ne8 11.d4 c6 12.d5; however, White has a better game (Larsen; Nielsen–Muir, corr. 1971). 6. Nb5 g6 7. Qf3 f5 :David Bronstein once won a game with 7...f6!? 8.Nxc7+ Qxc7 9.Qxf6 b6 10.Qxh8 Bb7 11.Qxh7 0-0-0, but he has not found followers.〔(Mukhin–Bronstein, USSR 1959 )〕 If Black tries 7...Nf5 then White continues 8.g4 (also strong is 8.Qd5 Nh6 9.d4 d6 10.Bxh6 Be6 11.Qf3 Bxh6 12.d5+/- Hughes-Fogarty, Pittsburgh 2013) 8...a6 9.gxf5 axb5 10.fxg6 Qe7 11.gxf7+ Kd8 12.Ne2 (preventing ...Nd4) e4 13.Qg3+/−. 8. Qd5 Qe7 :8...Qf6 has also been tried and white has to be careful. For instance, after 9 Nxc7+ Kd8 10 Nxa8 b6 11. d3 Bb7 12.h4 as in the main line, black has the strong 12...Ne7! that he cannot play with the queen on e7 (white has now a very poor game). Unfortunately, after 11.d4 Nxd4 12.Nxb6 axb6 13.Nf3 Bb7 white can play 14.Qxd4! (that would be a terrible move with the black queen on e7) and black's attack is now less sharp after 14...exd4 15.Bg5 Qxg5 16.Nxg5 9. Nxc7+ Kd8 10. Nxa8 :Black almost always continues 10...b6 (see diagram), preparing Bb7 to trap the knight. Black is at the moment a rook down, but will eventually regain the knight, leaving him down the exchange. In return, Black will play for an attack. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Vienna Game, Frankenstein-Dracula Variation」の詳細全文を読む スポンサード リンク
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