The Flohr Variation, 9.Bd3 is a variation of the Caro-Kann, Classical Variation, catalogued as ECO B19. The line runs 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3, reaching the position shown below after 17 half-moves.
White holds the centre with pawns on d4. Development is level at three minor pieces each. It is Black to move after nine moves.
On the Caro-Kann, Classical Variation generally: The most traditional Caro-Kann line. Black develops the bishop to f5 before playing ...e6, avoiding the 'bad bishop' problem.
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The Flohr Variation, 9.Bd3 goes 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3. It is a variation of the Caro-Kann, Classical Variation and is catalogued as ECO B19.
The Flohr Variation, 9.Bd3 is ECO B19. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Caro-Kann, Classical Variation.
Stockfish evaluates the position after 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 at +0.32 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 d4. Development is level at three minor pieces each. It is Black to move.