NIFTY 50 · Historical Replay Lab

Real intraday OHLC only · 15-minute context + 5-minute execution · historical date hidden until review

1 · Load real NIFTY data (saved automatically)

Checking locally saved candles…

Download genuine NIFTY intraday candles automatically from the public GitHub repository. Once loaded, candles are cached in this browser. No manual CSV selection required.

No historical data loaded. Replay disabled.

Data integrity checks

CSV must include Timestamp, Open, High, Low, Close. Strict IST market hours; invalid OHLC and duplicate timestamps rejected; 5m/15m candles require complete constituent 1m bars; no interpolation; future replay remains within a single trading day; visible history may include prior sessions. No fake candles.



Mode15m + 5m
Visible history75 × 5m
DifficultyProgressive
SessionHidden


15-minute context
Awaiting data
5-minute execution
Future hidden
Tap either chart to zoom · 25-point price ticks where space permits · Zoom and pan cannot expose unrevealed candles


Chart annotations & setup classification
Mark horizontal support/resistance before locking. Levels appear on both charts, including expanded zoom. No future data is used.


2 · Lock your decision
Import data to begin.


3 · Reveal and score
0 / 12 future candles
The future is sealed until you lock your prediction.


Cumulative training statistics
Learning analytics
Complete challenges to unlock setup performance and confidence calibration.
Results persist in this browser's local storage when supported. Scores are based on index points, not actual option premiums. This is practice, not a predictive trading signal.