Tuthor · Goalkeeper — Spatial Reasoning Game

Time90 seconds per match

PointsEach save = 10 pts → coins

Zones4 height bands — compute f(x₀) and pick

How it works

Read the function f(x) that describes the shot trajectory

Calculate f(x₀) where x₀ is the goal position

Pick the zone (A, B, C, D) where the ball enters

The animation shows the real trajectory — learn from mistakes!

Zone guide

AHigh zoney ≥ 2

BUpper centre0 ≤ y < 2

CLower centre−2 ≤ y < 0

DLow zoney < −2

Power-ups

↔️

Adjacent zone

Next play also accepts the adjacent zone

⭐

Double point

Next save is worth 2 points

🎯

Only 2 zones

Next play shows only 2 options

⏱️

+5 seconds

More match time

⏰

+10 seconds

Big time reload

Goalkeeper