yeah, classic zombie post, but the idea still holds up: drilling note names a few minutes a day really does stick. i ended up making my own little timer-based quiz after that old link died, since half the “fretboard game” urls just turn into domain-sale pages. i got distracted one night and wound up on
https://crazytimeonline.org/ while procrastinating, which is the opposite of memorizing the neck
https://sweetbonanzashow.org/ and
https://boom-city.org/ have been the same sort of time-sink for me when i should be practicing. still, anything that pushes you to name notes instead of patterns is solid.