How to analyze position score in Stockfish

Question

I have a FEN position and I want to analyze which position is stronger. For example, I have this position

rnbq1bnr/pp2k2N/8/2p1p2Q/4N3/8/PPPP1PPP/R1B1KB1R b KQ - 0 1

How to evaluate a position and get score value using Stockfish? (example, the white score is +9 or black -5)

Are you asking about linking to SF automatically from your program? — HTTP 410, Jan 15 '20 at 15:45
Please see the screenshot( https://prnt.sc/qo4737 ), for example for this position Stockfish calculates that white position is stronger and score is +9.6 — Armen Stepanyan, Jan 15 '20 at 15:53
Is this what you are looking for? https://stackoverflow.com/q/50116972/4748017 — Herb, Jan 15 '20 at 16:56
No, I already have FEN, just I need to calculate with Stockfish which position is stronger — Armen Stepanyan, Jan 17 '20 at 07:48
I have a similar question, but I'm trying to do it in R or the CLI: https://stackoverflow.com/q/74904491/9727624 — CubicInfinity, Dec 23 '22 at 22:41

score 4 · Answer 1 · answered Jan 27 '20 at 09:59

With Python you could use the python-chess library:

import chess
import chess.engine

engine = chess.engine.SimpleEngine.popen_uci("stockfish")

board = chess.Board("rnbq1bnr/pp2k2N/8/2p1p2Q/4N3/8/PPPP1PPP/R1B1KB1R b KQ - 0 1")
info = engine.analyse(board, chess.engine.Limit(depth=20))
print("Score:", info["score"])
# Score: #+9

engine.quit()

Take a look at the engine module for further details.

How to analyze position score in Stockfish

1 Answers1

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