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  • "This opening we have adopted for a change on one or two occasions, with our friend Mr. Boden. It gives a slightly inferior game to the first player, and has, we fear, little beyond novelty to recommend it" (Bird, p. 167).
  • Infrequently, this opening is also sometimes called the Spike Opening. Henry Grob (1904 – 1974), an International Master, published analysis of this opening in his book, Angriff g2 – g4 in 1942.

Computer Analysis

  1. [30] –0.52: 1...d5 2.Bg2 Bxg4 3.c4 Nf6 4.Qb3 e5 5.cxd5 Bd6 6.Nc3 Na6 7.h3 Bf5 8.e4 Nc5 9.Qc4 Bg6 10.b4 Ncd7 11.d3 Rc8 12.Nb5 a6 13.Nxd6+ cxd6 14.Qb3 0–0 15.Nf3 Rc7 16.0–0 h6 17.a3 ;
  2. [30] –0.48: 1...e5 2.Bg2 d5 3.d4 exd4 4.Qxd4 Nf6 5.g5 Nc6 6.Qe3+ Ne4 7.Bxe4 dxe4 8.Qxe4+ Be7 9.Nc3 Qd4 10.Nf3 Qxe4 11.Nxe4 Bf5 12.Ng3 Bxc2 13.0–0 0–0–0 14.Be3 f6 15.Rac1 Bg6 16.Bc5 Rhe8 17.Bxe7 Nxe7 18.Rfd1 fxg5 19.Rxd8+ Rxd8 20.Nxg5;
  3. [30] –0.39: 1...c5 2.c4 e6 3.d3 d5 4.Bg2 Nc6 5.g5 h6 6.Nc3 dxc4 7.dxc4 Qxd1+ 8.Nxd1 Nd4 9.Kf1 hxg5 10.Bxg5 e5 11.b3 Ne7 12.Nc3 Rb8 13.Be4 Bf5 14.Rd1 f6 15.Bd2 Bxe4 16.Nxe4 Nec6;
  4. [30] –0.36: 1...d6 2.e3 e5 3.Nc3 d5 4.h3 h5 5.g5 Nc6 6.Nge2 Bf5 7.d4 Nb4 8.e4 dxe4 9.Be3 Nd5 10.Nxd5 Qxd5 11.dxe5 Qxe5 12.Qd4 Bd6 13.Qxe5+ Bxe5 14.Bd4 f6 15.Bxe5 fxe5 16.Bg2 Ne7 17.Ng3 g6 18.Nxe4;
  5. [30] –0.32: 1...Nc6 2.d4 d5 3.h3 h5 4.g5 e5 5.dxe5 Nxe5 6.e4 Bb4+ 7.Bd2 Qe7 8.Bxb4 Qxb4+ 9.Nc3 Ne7 10.a3 Qb6 11.Nxd5 Nxd5 12.Qxd5 Qxb2 13.Qb5+ Qxb5 14.Bxb5+ Ke7 15.0–0–0 Nd7 16.Bd3 Nc5 17.Nf3 Be6 18.Kb2 Rad8 19.h4;
  6. [30] –0.31: 1...a6 2.c4 e6 3.d4 d5 4.Nf3 dxc4 5.Bg2 Nc6 6.0–0 Nf6 7.g5 Nd7 8.Nc3 Bd6 9.b3 cxb3 10.axb3 Nb6 11.Bb2 0–0 12.h4 Nd5 13.e3 Bd7 14.Ne2 Qb8 15.e4 Nf4 16.Nxf4 Bxf4 17.d5 exd5;
  7. [30] –0.22: 1...e6 2.Nf3 d5 3.d4 Nc6 4.Nc3 Nf6 5.g5 Ne4 6.Nxe4 dxe4 7.Ne5 Nxe5 8.dxe5 Qxd1+ 9.Kxd1 Bd7 10.Be3 0–0–0 11.Bg2 Bc6+ 12.Ke1 Be7 13.Rd1 b6 14.h4 f5 15.exf6 gxf6 16.c3 f5 17.Bf4 Rhg8 18.Be5 Kb7 19.Rxd8;


  • 1...d5 (Grob's Opening)
  • 1...e5 (Grob's Opening)
  • 1...f5 (Alessi Gambit, Grob)
  • 1...g5 (Double Grob)
  • 1...g6
  • 1...Nh6 (Bucker Defense, Grob)
Image:chess zhor 26.png
Image:chess zver 26.png a8 rd b8 nd c8 bd d8 qd e8 kd f8 bd g8 nd h8 rd Image:chess zver 26.png
a7 pd b7 pd c7 pd d7 pd e7 pd f7 pd g7 pd h7 pd
a6 b6 c6 d6 e6 f6 g6 h6
a5 b5 c5 d5 e5 f5 g5 h5
a4 b4 c4 d4 e4 f4 g4 pl h4
a3 b3 c3 d3 e3 f3 g3 h3
a2 pl b2 pl c2 pl d2 pl e2 pl f2 pl g2 h2 pl
a1 rl b1 nl c1 bl d1 ql e1 kl f1 bl g1 nl h1 rl
Image:chess zhor 26.png
Grob's Opening
Image:Chess_zver_27_2.PNG a8 rl b8 nl c8 bl d8 kl e8 ql f8 bl g8 nl h8 rl Image:Chess_zver_27_2.PNG
a7 pl b7 c7 pl d7 pl e7 pl f7 pl g7 pl h7 pl
a6 b6 c6 d6 e6 f6 g6 h6
a5 b5 pl c5 d5 e5 f5 g5 h5
a4 b4 c4 d4 e4 f4 g4 h4
a3 b3 c3 d3 e3 f3 g3 h3
a2 pd b2 pd c2 pd d2 pd e2 pd f2 pd g2 pd h2 pd
a1 rd b1 nd c1 bd d1 kd e1 qd f1 bd g1 nd h1 rd
Grob's Opening


Chess Program

DroidFish w/ Stockfish Six (6)


"DroidFish is an Android port of the very strong Stockfish chess engine, combined with a feature-rich GUI."


  1. Bird, H. E. The Chess Openings, Considered Critically and Practically (London: Dean, 1877; New York: Lockwood, 1880, 1886) ISBN 9781166986032
  2. Danelishen, Gary (2008), The Final Theory of Chess, Phillidor Press, ISBN 978-0981567709
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