This is an overlay mosaic pattern worked in US terminology.

The pattern, Leap Year 2024, was released on March 5th, 2024.

This pattern is worked in the round and can be repeated to your desired size.

You will need to know the basics of mosaic crochet but there are tons of videos for beginners on YouTube.

Mosaic crochet is a dense crochet, no “holes” so is ideal for blankets, rugs, runners, cushions, etc.

You can use a variegated/print/cake yarn and allow the yarn to change colour on its own or you can use two separate colours to create a contrast in the pattern.