Extraplot game – Draw a Forecast on Today's Chart
Extraplot game turns a real chart into a daily forecast: extend the line beyond its cutoff, then compare your drawing with the hidden continuation.
Continue to GuessDash to draw your forecast for today's chart.
Open Extraplot on GuessDash
A Daily Chart-Forecasting Puzzle
- Category
- Puzzle Games
Extraplot turns chart reading into a drawing challenge. Each puzzle gives you a real data line, marks where the known values stop, and asks you to sketch what comes next. The example chart tracks the average number of active Atlantic tropical storms and hurricanes by week, with its visible line ending on 23 July and your drawing running through 24 December.
Topics across GuessDash range from baby names to search trends, so the subject changes while the central task stays familiar: read the shape, make a forecast, and see how it compares. GuessDash is a one-person project from the Netherlands. Its daily puzzle is shared, while an account adds access to older puzzles, cross-device scores and friends.
How to Play Extraplot
Controls
Select Open Extraplot on GuessDash above to play today's chart there. The chart shows its history up to a cutoff and leaves the later section for your forecast. Drag across the shaded area to continue the line, or use the arrow keys to move its date and value.
When you submit, compare your drawing with the hidden continuation. Closer forecasts generally earn more points, though scoring can vary from puzzle to puzzle. A new shared puzzle appears at midnight Amsterdam time, and you can play today's chart without an account.
Game Features
- Continue a real data chart beyond its visible cutoff
- Draw with a pointer or adjust dates and values with arrow keys
- Compare the forecast with the hidden continuation
- Try a new shared chart each day
- Play today's puzzle without creating an account
Extraplot Chart Puzzle FAQ
How do you play Extraplot?
Open Extraplot on GuessDash, inspect where the known chart stops, and draw a continuation through the shaded future area. Submit when your forecast is ready, then compare it with the hidden line.
What do the arrow keys change?
Left and Right move along the chart's dates, while Up and Down change the forecast value. You can also drag across the shaded chart area to draw the line directly.
How are chart guesses scored?
A closer forecast generally earns more points, but scoring can differ between puzzles. Use the result as feedback on the shape and direction of your line.
When does a new puzzle appear?
GuessDash publishes a new shared puzzle at midnight Amsterdam time. You can play the current chart without an account; an account adds the archive, cross-device scores and friends.
Where can I play Extraplot?
Select Open Extraplot on GuessDash above to play the daily chart there. Extraplot is made by GuessDash, a one-person project based in the Netherlands. You can also play it at https://guessdash.com/extraplot.