Show HN: Brain Frog – Can you be random enough for 11 lines of JavaScript?

AlexanderZ1 pts0 comments

Brain Frog

Brain Frog

Daily +300

Sign in

0/ 50 HITS

BRAIN FROG

Punch left or right — tap or use the ← → keys. The frog learns your pattern and blocks where it thinks you'll hit, so stay unpredictable. Land 50 hits before your punches run out.

⚔️ Ranked Matchpay 100 · win 200<br>🥊 Practicefree

Sign in (top-right) to play Ranked and earn coins.

How does the frog block?<br>The frog is not reacting to your punch — it commits to a side a split-second before you swing. It looks only at your last 3 punches (and whether each one landed) to predict your next hand. No peeking, just pattern-reading — so change up your rhythm to throw it off. Tip: Coach mode is on in Practice (it shows a live read) — press C to hide or show it.

🏆 Leaderboard

Loading…

🕐 Last Games

Loading…

VICTORY

Play again<br>Home & leaderboard

⚔️ Ranked Match

Pay 100 to play —<br>win 200 if you land 50 hits.

Play<br>Cancel

Sign in

Send code

We emailed a 6-digit code to .

Verify & play<br>Change email

Pick a username — it's your name on the leaderboard. You can change it later.

Save & play

Cancel<br>No password — we email you a one-time code. New accounts get 500 coins.

build 03a24db

frog play brain sign hits ranked

Related Articles