The Sämisch Variation, with Bg5 is a variation of the King's Indian Defense, catalogued as ECO E81. The line runs 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bg5 c5 7. d5 e6 8. Qd2 exd5 9. Nxd5, reaching the position shown below after 17 half-moves.
White holds the centre with pawns on e4. Development is level at two minor pieces each. It is Black to move after nine moves. Black has castled while White’s king is still uncommitted.
On the King's Indian Defense generally: A hypermodern defense where Black allows White to build a big center, then counterattacks it.
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The Sämisch Variation, with Bg5 goes 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bg5 c5 7. d5 e6 8. Qd2 exd5 9. Nxd5. It is a variation of the King's Indian Defense and is catalogued as ECO E81.
The Sämisch Variation, with Bg5 is ECO E81. ECO codes group openings by their move order, so nearby codes cover closely related lines of the King's Indian Defense.
Stockfish evaluates the position after 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bg5 c5 7. d5 e6 8. Qd2 exd5 9. Nxd5 at +0.36 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 two minor pieces each. It is Black to move. Black has castled while White’s king is still uncommitted.