Feature: Daily Challenge — One song per day, global comparison

[mholzi]

Feature

Wordle-style daily challenge: everyone plays the same song, results are compared.

Concept

• One song selected daily (deterministic from playlist pool via date seed)
• Player guesses year, gets scored
• Compare with others: "You scored better than 73% of players today"
• Share result as emoji grid (like Wordle)
• Streak tracking: consecutive days played

Why

• Wordle effect: "Hast du heute schon Beatify gespielt?"
• Drives daily engagement and return visits
• Shareable results = organic marketing
• Low commitment (1 song = 30 seconds)

Implementation Ideas

• Daily song selection: hash(date + secret) → playlist index
• Separate /daily endpoint, no lobby needed
• Store results in stats.json per date
• Comparison against all participants that day

Effort

~6-8h

Labels

enhancement