The Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack is a variation of the Sicilian Defense, catalogued as ECO B69. The line runs 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6, reaching the position shown below after 21 half-moves.
White holds the centre with pawns on e4. Development is level at three minor pieces each, and White is up three points of material. It is Black to move after 11 moves. White has castled while Black’s king is still uncommitted.
On the Sicilian Defense generally: The most popular and aggressive response to 1.e4. Black fights for the center asymmetrically, leading to rich tactical play.
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The Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack goes 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6. It is a variation of the Sicilian Defense and is catalogued as ECO B69.
The Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack is ECO B69. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Sicilian Defense.
Stockfish evaluates the position after 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 at +0.33 at depth 18, which is a slight pull for White, within normal opening margins. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
White holds the centre with pawns on e4. Development is level at three minor pieces each, and White is up three points of material. It is Black to move. White has castled while Black’s king is still uncommitted.