chess source

chess.positions

fail

Current board position lookup by FEN. Returns piece placement, side to move, castling rights, en passant square, and all legal moves.

fen captured 2026-08-30 15:01:37Zmedian 25269 ms
Verdict: FALSE

All variants failed. First error: Error: Source request failed Detail: source API request failed before a response was received [GET] http://127.0.0.1:3001/api/chess/position Hint: The upstream API could not be reached. Check connecti

What to do

Unrecognized error
unknown

Inspect the raw error and add a rule to scripts/analyze_failures.py.

View the error under Probe variants → first trial → error block.
rendering…

Summary

VariantTrialsMinMedianMaxRow countsErrors
minimal127491 ms27491 ms27491 ms[0]1
realistic125269 ms25269 ms25269 ms[0]1
edge123524 ms23524 ms23524 ms[0]1

Latency per trial

minimalmedian 27491ms
t127491ms
scale: 0–27491 ms
realisticmedian 25269ms
t125269ms
scale: 0–25269 ms
edgemedian 23524ms
t123524ms
scale: 0–23524 ms

Probe variants — every command + output

minimal1 trials
min 27491ms · median 27491ms · max 27491ms · rows 0

smallest valid query

Command
SELECT * FROM chess.positions WHERE fen = '1' LIMIT 1
Trials + output
trial 1·27491ms·rows 0isError=true
Error
Error: Source request failed
Detail: source API request failed before a response was received [GET] http://127.0.0.1:3001/api/chess/position
Hint: The upstream API could not be reached. Check connectivity and retry.
realistic1 trials
min 25269ms · median 25269ms · max 25269ms · rows 0

typical user query

Command
SELECT * FROM chess.positions WHERE fen = '1' LIMIT 5
Trials + output
trial 1·25269ms·rows 0isError=true
Error
Error: Source request failed
Detail: source API request failed before a response was received [GET] http://127.0.0.1:3001/api/chess/position
Hint: The upstream API could not be reached. Check connectivity and retry.
edge1 trials
min 23524ms · median 23524ms · max 23524ms · rows 0

edge: larger limit

Command
SELECT * FROM chess.positions WHERE fen = '1' LIMIT 50
Trials + output
trial 1·23524ms·rows 0isError=true
Error
Error: Source request failed
Detail: source API request failed before a response was received [GET] http://127.0.0.1:3001/api/chess/position
Hint: The upstream API could not be reached. Check connectivity and retry.

All returned rowsacross all non-errored trials · filterable · paginated

0 rows stored · 0 returned · page 1/1
No rows captured. Trials either returned isError=true (errors shown above) or the probe runner didn't capture full output rows.

Trial comparison

Variant / comboTrial #LatencyRowsStatusFirst key returned
minimalt127491ms0error
realistict125269ms0error
edget123524ms0error
Probed by bld-dabqr1nqj5pc73dgn3h0-676t6 at 2026-08-30T15:01:37Z
JSON record: reports/chess/tables/positions.json