Why Blindspot Blackjack · free, play money

Every move, priced in chips.

Blackjack is a solved game. The coach works out the best move for your cards, the dealer's card and your table's rules, and after every decision shows what each option is worth on average. Play at a real-looking table with bots that each have their own habits, and see exactly what your mistakes cost. Free, play money only, nothing to download.

Free, no paywallPlay money onlyRuns in the browserPhone friendlyNot AIExact maths

Play a hand For coaches and streamers

Blackjack table with the coach showing the average result of every move for a pair of twos against a 10 — **A real spot:** a pair of 2s against a 10. You hit, the coach agrees, and shows what split, surrender, stand and double would have cost.

The blackjack table on a phone with the coach's verdict above the buttons — **On a phone:** the table, your buttons and the coach's verdict on one screen.

The coach · not AI

Exact maths, every hand.

There's no chatbot in the coach. It works out the average result of every move you're allowed to make (hit, stand, double, split, surrender), using the same method basic strategy charts are built on. Same hand, same advice, every time.

It runs in your browser. Your hands aren't sent to any AI company, and it doesn't learn from you.
It adjusts to the rules: number of decks, whether the dealer hits soft 17, surrender, and 3 to 2 or 6 to 5.
It tracks your mistakes by kind of hand (12 to 16, soft hands, pairs, doubles, surrender, insurance) and gives you drills for each.
More detail: how the coach works.

Learn by playing

From basic strategy to counting cards.

Blackjack strategy chart tool — **Strategy chart:** built for any table's rules. Tap a cell to see why, and what each move is worth.

The daily blackjack hand — **A daily hand:** one decision a day, the same for everyone, with the maths behind the answer.

Bots with habits: some play by the book, some never bust, some play like the dealer. The tracker shows which habits cost the most.
Card counting, optional: a Hi-Lo count you can switch on at any table, a counting trainer, a true count calculator and the key index plays.
Lessons, drills and tools: a strategy quiz, dealer bust odds, a house edge calculator and more.
Play with friends: private tables from a link, bots in empty seats if you like, and a career mode with a leaderboard.

For coaches and streamers · OBS ready

Bring your community to the table.

Run viewer game nights, coach students while seeing their cards, or put your own table on stream. It's all free for you and your viewers.

Viewer game nights

Host a table, viewers join from a link.

Private tables with a code, bots in empty seats if you like, turn clocks and quick reactions. As host you see every hand live, and the broadcast overlay shows the table after a delay you set, dealer's hole card included.

Coach mode

Coach a student at a live table.

Your student sends you a private link. You join their table, see their hand as they play, and message them in the moment. Other players only see that they have a coach, never your messages.

OBS overlay + dock

Put your own game on stream.

One browser source for the overlay and one custom dock. Bet, hit, stand, double, split and take a break without leaving OBS, and choose what's shown (the count, the chart's move, the tracker). Starting soon and Be right back scenes are built in.

The full OBS window: the Blindspot Blackjack overlay in the preview, BSBJ browser source, the audio mixer, and the Blindspot Blackjack dock — **In OBS:** the overlay is a browser source (BSBJ) in your scene, and the Blindspot dock sits beside your preview. Play from the dock, and chat watches it on the overlay.

The blackjack overlay with a transparent background on top of a Windows desktop, next to the dock — **It's a real overlay:** the background is see-through, so the table sits on top of your game, webcam or desktop. Here it's over a Windows desktop, with dealer bust odds and the chart's best move on the side panel.

Blackjack overlay with the last move STAND and the dock — **Every move called out:** the move you picked in big letters, the round history and a tracker for every seat.

Set up a stream night

Sign in with Google or any email.
Open the Streamer page and turn streaming on. Add your overlay link to OBS as a Browser Source, and your dock link as a Custom Browser Dock.
Create a table in the lobby with streamer mode on, and share its invite link or code with chat.
Play from the dock. The overlay follows your seat. Hosting instead of playing? The broadcast view runs on a delay.

Questions

The short answers.

What does it cost?

Nothing. There's no paid tier and nothing is locked. An optional Ko-fi link helps with hosting.

Is there any real money?

No. Play money only, no gambling, no deposits, and no affiliate links to real-money sites.

Do I need to download anything?

No. It runs in the browser on desktop and phones. Sign in with Google or any email to save your stats and play with others; practice works without an account.

Are there ads?

A few, on reading pages like lessons and tools. None at the tables, on account pages or on stream overlays.

Is the coach AI?

No. It's exact blackjack maths, running in your browser. See how the coach works.

Is there poker too?

Yes: Blindspot Poker has a solver-checked coach for hold'em and Omaha, the same overlay and dock, and one account for both sites.