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Openings / C42
Petrov Defense
1. e4 e5 2. Nf3 Nf6
- Evaluation
- +0.30 (White's view)
- White to move, best
- f3e5
- Main line
- f3e5 d7d6 e5f3 f6e4 d2d4
- Depth
- 24, Stockfish 17
- FEN
- rnbqkb1r/pppp1ppp/5n2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 2 3
Black counterattacks e4 rather than defending e5. After 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 the position is symmetrical and solid, a favourite at the top level for holding with Black.
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/pppp1ppp/5n2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 2 3","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/pppp1ppp/5n2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 2 3",
"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/pppp1ppp/5n2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 2 3",
"depth": 24,
"multipv": 3
},
)
data = r.json()Related openings
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