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Openings / C88

Ruy Lopez: Closed, Anti-Marshall

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4

♜♝♛♜♚♟♟♝♟♟♟♟♞♞♟♟♙♙♗♘♙♙♙♙♙♙♖♘♗♕♖♔
Evaluation
+0.24 (White's view)
Black to move, best
b5b4
Main line
b5b4 d2d3 d7d6 a4a5 c8e6
Depth
24, Stockfish 17
FEN
r1bq1rk1/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQR1K1 b - - 0 8

8.a4 sidesteps the Marshall gambit (8.c3 d5). Black usually plays 8...b4 or 8...Bb7, and the game stays a slow Ruy Lopez middlegame.

Get this from the API

curl -s https://stockfishapi.com/v1/eval \
  -H "Authorization: Bearer $STOCKFISH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"fen":"r1bq1rk1/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQR1K1 b - - 0 8","depth":24,"multipv":3}'
const res = await fetch("https://stockfishapi.com/v1/eval", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.STOCKFISH_API_KEY}`, "Content-Type": "application/json" },
  body: JSON.stringify({
    "fen": "r1bq1rk1/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQR1K1 b - - 0 8",
    "depth": 24,
    "multipv": 3
  }),
});
const data = await res.json();
import os, requests

r = requests.post(
    "https://stockfishapi.com/v1/eval",
    headers={"Authorization": f"Bearer {os.environ['STOCKFISH_API_KEY']}"},
    json={
        "fen": "r1bq1rk1/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQR1K1 b - - 0 8",
        "depth": 24,
        "multipv": 3
    },
)
data = r.json()

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