Tradle

The board is a treemap of one country's exports and nothing else. Every rectangle is a product group, its area is that product's share of the country's total exports, the bigger blocks carry their percentage printed inside them, and the country's total export value sits above the chart. From that alone you type the country.

1. Read the treemap. Block size is share of exports, and the labels name the product group with its percentage.
2. Check the total export value printed above the chart, it sets the scale of the economy you are looking at.
3. Type a country into the box and press Guess.

Tradle is the rare daily that teaches you something structural. Spend a week with it and you stop reading countries as shapes and start reading them as export mixes: the ones that are a single vast block plus a rounding error, the ones whose chart is a fine mosaic of dozens of manufactured lines, the ones where one crop takes a quarter of the board. It needs no account, and the whole round is one chart and one text box.

The round is one chart and one text box: you read the treemap, type a country and press Guess.

Core play

A single default puzzle: the board presents one treemap of a country's exports (blocks sized by export share, larger blocks show percentages, and the country's total export value is printed above the chart). From that chart you type a country into the box and press Guess.

• Look at the colours before you read a single label. The treemap groups products into colour families, so one block of a single colour swallowing half the chart already tells you whether you are looking at a mineral exporter, an electronics assembler or a farm economy.
• The percentages are printed inside the larger blocks, so you can rank a country's top three exports without hovering over anything.
• The total above the chart is worth as much as the shapes. The same export mix at a very different total points at a very different country.