Nimzowitsch
If you search the ChessBase Mega Database for games in which Nimzowitsch played 1.b3 you won't find many — no more than three to be precise, one win, one draw, one loss. However, widening the research leads to more results: in 17 games Nimzowitsch played 1.Nf3 Nf6 2.b3 (seven wins, no loss, ten draws). But maybe 1.b3 is also named after Nimzowitsch because his only win with this opening illustrates some of its basic ideas rather well. 
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1.b3 d5 2.Bb2 c5 3.e3 Nc6 4.Bb5 Bd7 5.Nf3 Qc7 6.0-0 Nf6 7.d3 e6 8.Nbd2 Be7 9.Bxc6 Bxc6 10.Ne5 0-0 11.f4 Be8 12.Rf3 Nd7 13.Rg3 g6 14.Qg4 Bf6 15.Ndf3 Bg7 16.Rh3 f5 17.Qh4 Nf6 18.Ng5 h5 19.Nxe6 Qe7 20.Nxg7 Qxg7 21.Rg3 Ng4 22.Qg5 Nxe5 23.Bxe5 Qh7 24.c4 Bf7 25.Qxf5 dxc4 26.bxc4 Rad8 27.d4 cxd4 28.exd4 1–0
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Nimzowitsch,A | - | Saemisch,F | - | 1–0 | 1929 | A06 | Karlsbad-04 International Masters | 15 |
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Aron Nimzowitsch 1931 | Photo: L'Echiquier 1931
Fischer
An inspiring game and good publicity for 1.b3. Apparently, it also impressed Bobby Fischer. Fischer was a very principled and classical player with comprehensive theoretical knowledge, and for most of his career he had almost always played 1.e4 ("Best by Test", he quipped). But on his path to the World Championship at the beginning of the 1970s, he varied his opening repertoire a bit and occasionally tried 1.b3. In four tournament games, to be precise. Fischer won all four of them and in round 21 of the Interzonal Tournament in Palma de Mallorca 1970, when playing the Brazilian Henrique Mecking, Fischer showed what he had learned from Nimzowitsch.
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1.b3 d5 2.Bb2 c5 3.Nf3 Nc6 4.e3 Nf6 5.Bb5 Bd7 6.0-0 e6 7.d3 Be7 8.Bxc6 Bxc6 9.Ne5 Rc8 10.Nd2 0-0 11.f4 Nd7 12.Qg4 Nxe5 12...f5? 13.Qxg7+ Kxg7 14.Nxc6+ Bf6 15.Nxd8 Bxb2 16.Nxe6+ Kf7 17.Nxf8 13.Bxe5 Bf6 14.Rf3 Qe7 15.Raf1 a5 16.Rg3 Bxe5 17.fxe5 f5? 17...g6 18.exf6 Rxf6 19.Qxg7+ Qxg7 20.Rxf6 Qxg3 21.hxg3 Re8 22.g4 a4 23.Nf3 axb3 24.axb3 Kg7 25.g5 e5 26.Nh4 Bd7 27.Rd6 Be6 28.Kf2 Kf7 29.Rb6 Re7 30.e4 dxe4 31.dxe4 c4 32.b4 Bg4 33.Ke3 Rd7 34.g6+ Kf8 35.gxh7 Rxh7 36.Ng6+ Ke8 37.Nxe5 Bc8 38.Nxc4 Kd8 39.Nd6 Rg7 40.Kf2 Kc7 41.Nxc8 Kxc8 42.Rd6 1–0
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Fischer,R | - | Mecking,H | - | 1–0 | 1970 | A03 | Interzonal-08 | 21 |
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A reminder how useful it can be to know the classics.
Larsen
No other World Champion was more infamous both inside and outside the chess world than Bobby Fischer. On this DVD, a team of experts shows you the winning techniques and strategies employed by the 11th World Champion.
Grandmaster Dorian Rogozenco delves into Fischer’s openings, and retraces the development of his repertoire. What variations did Fischer play, and what sources did he use to arm himself against the best Soviet players? Mihail Marin explains Fischer’s particular style and his special strategic talent in annotated games against Spassky, Taimanov and other greats. Karsten Müller is not just a leading international endgame expert, but also a true Fischer connoisseur.
But this game by Fischer and his three other wins with 1.b3 were not enough to give the chess world another "Fischer variation". Instead, the move 1.b3 was named after the Danish player Bent Larsen, a rival of Fischer. Larsen played 1.b3 regularly and with success. The Mega Database contains 47 games in which Larsen tried 1.b3 — he won 35 of them, six were drawn, and six times Larsen lost.

Bent Larsen during a match against Lajos Portisch in 1977 | Photo: Hans Peters / Anefo CC BY-SA 3.0 nl via Wikimedia Commons
But in Larsen's most famous game with 1.b3 he suffered a defeat — perhaps the worst defeat of his career. In the famous match of the "Soviet Union vs The Rest of the World", in Yugoslavia 1970, in which the chess elite of the Soviet Union played a four-game match on ten boards against the best players from "the rest of the world" (which the Soviets narrowly won 20½ : 19½) Larsen played on board one for the World Team, and in the second of his four games he lost in just 17 moves with white against World Champion Boris Spassky.
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1.b3 e5 2.Bb2 Nc6 3.c4 Nf6 4.Nf3 e4 5.Nd4 Bc5 6.Nxc6 dxc6 7.e3 Bf5 8.Qc2 Qe7 9.Be2 0-0-0 10.f4? Ng4! 11.g3?! 11.0-0? Rxd2! 12.Nxd2 Nxe3-+ 11.Bxg4? Qh4+ 12.g3 Qxg4 11.Qc1 h5 12.Nc3 Rd7 11...h5 11...Rxd2 12.Nxd2 Nxe3 13.Qc3 Rd8 12.h3 12.Nc3 Rxd2!-+ 12...h4! 13.hxg4 hxg3 14.Rg1 Rh1‼ 14...Qh4 15.Rg2 Qh1+ 16.Bf1 Bxg4 17.Qxe4 17.Nc3 Bf3 18.Rxg3 Rh2 17...Rhe8 18.Be5 f5-+ 15.Rxh1 g2 16.Rf1 16.Rg1 Qh4+ 17.Kd1 Qh1-+ 16...Qh4+ 17.Kd1 gxf1Q+ 0–1
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Larsen,B | - | Spassky,B | - | 0–1 | 1970 | A01 | Match/Team URS-World 20,5-19,5 | 2.1 |
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But Larsen fought back. In the third round of the match, he won with black against Spassky who then decided to take a rest and to let Leonid Stein play the last game against Larsen. But Stein also lost against Larsen, who thus finished the match with a score of 2½ : 1½ though this is often forgotten because his drastic defeat against Spassky stuck in memory. But even after the game against Spassky Larsen kept his faith in 1.b3 and continued to score fine wins with it, for instance, against Brian Eley from England.
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1.b3 e5 2.Bb2 Nc6 3.e3 Nf6 4.Bb5 d6 5.Ne2 Bd7 6.0-0 Be7 7.f4 e4 8.Ng3 0-0 9.Bxc6 bxc6 10.c4 d5 11.Nc3 Re8 12.Rc1 Bg4 13.Nce2 Nd7 14.h3 Bxe2 15.Qxe2 Nc5 15...Bf6 16.Bxf6 Nxf6 16.Qg4 g6 17.f5 Nd3 18.fxg6 hxg6 19.Rxf7! Kxf7 20.Rf1+ Bf6 21.Bxf6 1–0
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Larsen,B | - | Eley,B | - | 1–0 | 1972 | A01 | Christmas Congress 1972/73-48 Premier | 2 |
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The "Mega" is the database every serious chessplayer needs. The database contains 7.1 million games from 1500 to 2017, in highest quality standard, full of top level analyses and completely classified.Games like this explain why 1.b3 is called Nimzowitsch-Larsen Attack or Larsen Opening. But Larsen himself had a more pragmatic approach. In his book
Alle Figuren greifen an (All pieces attack) he writes:
In the final rounds of the tournament in Palma de Mallorca I played weakly and without focus. But in one game a little "psychological trick" in the opening still brought me success. In most openings there is simply too much theory... Therefore, namely to break away from the 'book' I occasionally opened with 1.b3. ... But the move 1.b3, too, inevitably followed the way of a lot of other openings; it was analysed in detail and at a certain point of time it was also dominated by theory. ... When this happened I just began to play something else. (Bent Larsen, Alle Figuren greifen an, SchachDepot Verlag 2009, p. 210)
And indeed he did. After 1972, Larsen employed 1.b3 only sporadically. But since then, the move has found new followers. Today, strong grandmasters such as Hikaru Nakamura (+33, =14, -5), Baadur Jobava (+35, =18, -14), Richard Rapport (+16, =11, -14), and others regularly play 1.b3. (The numbers in brackets indicate the results of the games [classical, rapid and blitz] in the Mega Database 2018 in which these three players played 1.b3.)
Rapport
The following short victory by Rapport is an example of the unorthodox positions which might arise after 1.b3.
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1.b3 b6 2.e4 Bb7 3.Nc3 e6 4.Bb2 c5 5.f4 Nc6 6.Nf3 Nd4 7.Bd3 f5 8.0-0 Nf6 9.exf5 Nxf3+ 10.Rxf3! Bxf3 11.Qxf3 Be7 12.g4 0-0 13.g5 Ne8 14.fxe6 dxe6 15.Qh3 Qd4+ 16.Kh1 g6 17.Qxe6+ Rf7 18.Bc4 Nd6 19.Bd5 Re8 20.Nb5! Qxb2 21.Nxd6 Qxa1+ 22.Kg2 Ref8 23.Qxe7 1–0
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Rapport,R | 2704 | Mista,A | 2613 | 1–0 | 2014 | A01 | SRB-chT | 1.5 |
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However, Rapport — and most of the other players probably as well — does not care whether 1.b3 is named after Nimzowitsch, Larsen, Fischer or anyone else. For them, the most important thing is probably that the move offers chances to win and is not easy to play for Black.
Meanwhile, 1.b3 has also found its way into the practice of today's world elite, and now finally a modern top ten player has taken on the subject for ChessBase: none other than Grandmaster Wesley So!
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