The Stoltz Variation, Center Variation, Mikhalchishin Line is a variation of the Semi-Slav Defense, catalogued as ECO D45. The line runs 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Qxe4 e5 10. dxe5, reaching the position shown below after 19 half-moves.
White holds the centre with pawns on e5. Development is level at two minor pieces each, and White is up a pawn of material. It is Black to move after ten moves. The d-file file is fully open.
On the Semi-Slav Defense generally: A complex defense combining ideas from the Slav and Queen's Gambit Declined.
You can play through this variation move by move in your browser — Learn mode walks the line with an explanation at each step, and Drill mode replays it from memory so you find out whether you actually know it. No account is required.
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The Stoltz Variation, Center Variation, Mikhalchishin Line goes 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Qxe4 e5 10. dxe5. It is a variation of the Semi-Slav Defense and is catalogued as ECO D45.
The Stoltz Variation, Center Variation, Mikhalchishin Line is ECO D45. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Semi-Slav Defense.
Stockfish evaluates the position after 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Qxe4 e5 10. dxe5 at -0.41 at depth 18, which is a slight pull for Black, 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 e5. Development is level at two minor pieces each, and White is up a pawn of material. It is Black to move. The d-file file is fully open.