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Openings / A45
London System
1. d4 Nf6 2. Bf4
- Evaluation
- +0.18 (White's view)
- Black to move, best
- c7c5
- Main line
- c7c5 e2e3 d8b6 b1c3 c5d4
- Depth
- 24, Stockfish 17
- FEN
- rnbqkb1r/pppppppp/5n2/8/3P1B2/8/PPP1PPPP/RN1QKBNR b KQkq - 2 2
A setup opening: Bf4, e3, Nf3, c3, Bd3, Nbd2. Black's most testing replies hit b2 early with ...c5 and ...Qb6, or play ...d5 and ...Bf5 for a symmetrical game.
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":"rnbqkb1r/pppppppp/5n2/8/3P1B2/8/PPP1PPPP/RN1QKBNR b KQkq - 2 2","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": "rnbqkb1r/pppppppp/5n2/8/3P1B2/8/PPP1PPPP/RN1QKBNR b KQkq - 2 2",
"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": "rnbqkb1r/pppppppp/5n2/8/3P1B2/8/PPP1PPPP/RN1QKBNR b KQkq - 2 2",
"depth": 24,
"multipv": 3
},
)
data = r.json()Related openings
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