Gareth Cooper

Level 01

Back Vertex Distance Calculator

Compensate lens power for changes in back vertex distance, e.g. contact lens power from a spectacle Rx.
bvdcalculator.garethcooper.com
Level 02

Roadworks Merge Simulator

What happens to traffic when one lane closes: zipper merging, early merging and lane blockers.
roadworks.garethcooper.com
Level 03

Space Invaders

The retro arcade classic, playable in the browser.
spaceinvaders.garethcooper.com
Level 04

Sudoku

The classic 9×9 logic puzzle.
sudoku.garethcooper.com