B-21

Blackjack bingo.

Cards are called one at a time. Mark them on your 5×5 grid of playing cards and make a row or column of full squares total exactly 21 — without any line going over.

Open the table (TV) →Phones only

1–8 players, each on their own phone. Bots can fill empty seats.

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How it plays

Every call, you must mark one half. Each square has a rank half and a suit half. A square that shares the called card's rank can take its rank half; one that shares its suit can take its suit half. The exact card counts for either, and you pick which. A square with both halves is full. Two of the same half never complete it.
Only full squares count. Face cards are 10, Aces 1 or 11. Each row and column shows its total.
Exactly 21 on any row or column wins. Two players hitting 21 on the same call tie, and the tiebreak decides it.
Can't mark? You bust. If a call offers you no half at all, your card is out.
Any line over 21 busts your whole card. And every line on every grid adds up to more than 21, so no line can ever be completed safely.
Stand whenever you like to lock in your best line. If nobody hits 21, the highest standing line wins. But standing is final, and your grid flips face-down.

Everyone gets the same 25 cards, laid out differently, so every call offers every player the same options. What decides the round is which square you pick and when you stand.

No diagonals. Four Aces on every grid, never two in one row or column.

A phone showing the 5x5 grid of cards, line totals, glowing legal squares and the Stand button. — Your grid is on your phone and nobody else's. When the call gives you a choice, the squares you may mark **glow**. A rank half daubs the left side of a square and a suit half the right; full squares get a chip. On the exact match, the left side takes the rank half and the right side the suit half. Each row's total is at its right end and each column's is below it; amber means close, green means 21. **Hold** the Stand button to lock in.

The TV showing the called card, the mark timer and each player's status. — The TV is the caller. It shows the card, the mark timer and who is still choosing, but only each player's status (Active, Stood, Bust, 21), never their grid.

The reveal: every player's grid side by side with the best line outlined. — At the end, every grid goes up side by side with each player's best line outlined.