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The Immortal Zugzwang Game is a chess game between Friedrich Sämisch and Aron Nimzowitsch, played in Copenhagen 1923. It gained its name because the final position is sometimes considered a rare instance of zugzwang occurring in the middlegame.〔E.g., Fred Reinfeld, ''Hypermodern Chess: As Developed in the Games of Its Greatest Exponent, Aron Nimzovich'', Dover Publications, 1958, p. 90.〕 According to Nimzowitsch, writing in the ''Wiener Schachzeitung'' in 1925, this term originated in "Danish chess circles".〔Edward Winter, (Zugzwang ) (1997). Retrieved on 2008-12-24.〕 == The game (notes by Nimzowitsch) == White: Friedrich Sämisch Black: Aron Nimzowitsch Opening: Queen's Indian Defense (ECO E17) 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 :Queen's Indian Defense. 6. Nc3 0-0 7. 0-0 d5 8. Ne5 c6 :Safeguards the position. 9. cxd5?! cxd5 10. Bf4 a6 :Protects the outpost station c4, i.e., by ...a6 and ...b5. 11. Rc1 b5 12. Qb3 Nc6 :The ghost! With noiseless steps he presses on towards c4. 13. Nxc6 :Samisch sacrifices two tempi (exchange of the tempo-eating Knight on e5 for the Knight which is almost undeveloped) merely to be rid of the ghost. 13... Bxc6 14. h3? Qd7 15. Kh2 Nh5 :I could have supplied him with as yet a second ghost by ...Qe7 and ...Knight–d7–b6–c4, but I wished to turn my attention to the King's side. (The author likely meant ...Qb7, as e7 has a bishop on it. ) 16. Bd2 f5! 17. Qd1 b4! 18. Nb1 Bb5 19. Rg1 Bd6 20. e4 fxe4! :This sacrifice, which has a quite surprising effect, is based upon the following sober calculation: two Pawns and the seventh rank and an enemy Queen's wing which cannot be disentangled - all this for only one piece! 21. Qxh5 Rxf2 22. Qg5 Raf8 23. Kh1 R8f5 24. Qe3 Bd3 25. Rce1 h6!! :A brilliant move which announces the Zugzwang. White has not a move left. If, e.g., Kh2 or g4, then R5f3. Black can now make waiting moves with his King, and White must, willy-nilly, eventually throw himself upon the sword. 0–1 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「Immortal Zugzwang Game」の詳細全文を読む スポンサード リンク
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