Blitz is a 90-second geography sprint. Answer as many rounds as you can before the clock runs out. A clean answer — a pin within 300 km or a stat error under 10% — stamps a +5.0s time bonus; a miss costs −5.0s.
Each challenge alternates between a map pin and a stat slider drawn from the shared Pin or Miss seed dataset. The run ends when the clock reaches zero, and your best score is saved on this device.