Draw the diagram

When a problem describes a situation in words, drawing it converts memory work into looking. A rough sketch with the given numbers written on it is faster than re-reading the sentence four times, and it exposes relationships the words hide.

Your progress

Not started

5Not started
0Familiar
0Proficient
0Mastered

Saved in this browser only. No account, nothing sent anywhere.

Work through it

LearnWhat it is, how to spot it, a worked example, and where it goes wrong.
Practice — 3-point ladder3 problems. Three in a row finishes it.0/3 in a row · 0/3 solved
Practice — 4-point ladder1 problem. Three in a row finishes it.0/3 in a row · 0/1 solved
Practice — 5-point ladder1 problem. Three in a row finishes it.0/3 in a row · 0/1 solved
Skill quizFinish every ladder that has problems first.Finish the ladders above first

Before and after

Needs first

Nothing. This is one of the skills the Atlas starts from.

Opens up

GEO-17Shortest paths on and around shapes LOG-04Ordering and ranking from clues

In official papers

No indexed official paper question has been tagged with CFT-02 yet. The index grows one paper at a time, and it records only question numbers, point values and our own skill tags — never the problems themselves.

See the papers indexed so far

Loading…