21 Blitz Scoring Explained: Base, Combo, Streak, and Time Bonus

The 21 Blitz game-over screen splits your score across five line items. Understanding what each one measures helps you decide which clears to pursue and when an undo is worth its clock cost. This breakdown comes from OCR analysis of real game panels and simulation work.

The game-over screen, explained

When a game ends, you see this breakdown:

• Stacks cleared: how many columns you cleared this game
• Base score: points for the clears themselves
• Streaks bonus: points for consecutive clears
• Combo bonus: the separate results-screen line for combined clear conditions
• Time bonus: 10 × seconds remaining on the clock

These five lines add up to your final score. Each one works differently.

Base score: what a clear is worth

Separate the scoring from the results-screen labels: 200 points for a wild-card clear, 400 for a regular 21, and 600 for a five-card stack. If a five-card stack also totals exactly 21, the awards stack for 1,000 total points. A wild card that also completes the five-card/21 condition can stack even higher.

For play, the implication is simple: do not distort a healthy board to chase special payouts. A charlie-21 is valuable when it appears naturally, but the simulations favored survival and efficient clearing over fragile setups.

Combo bonus: charlie-21 payouts, not a second streak system

A lot of players assume “Combo” and “Streak” are two words for the same thing. They aren’t.

The Streaks bonus rewards back-to-back consecutive clears. Combo is different: it is the results-screen line for five-card stacks that also total exactly 21. A non-wild charlie-21 is worth 1,000 total points: 400 for the 21 plus 600 for the five-card stack. The game splits that payout across Base/Combo labels on the results screen, but the strategic meaning is straightforward.

So the advice is simple: take charlie-21s when the board naturally gives them to you. Do not play as if Combo is a separate mystery meter you need to fill.

Streak bonus: back-to-back clears, escalating rewards

The Streaks bonus rewards clears on consecutive card placements: one clear immediately followed by another, with no non-clearing card between them. The schedule is:

Consecutive clears	Bonus for that clear
1st clear	+0
2nd consecutive	+250
3rd consecutive	+500
4th consecutive	+750
5th consecutive	+1,000
6th consecutive	+1,250

Any non-clearing placement, including a single card that does not trigger a clear, resets the streak to zero.

Six consecutive clears earns 3,750 bonus points on top of base scoring. That’s why streaks feel so explosive when they happen. But notice: the streak counter requires literal back-to-back clears. Many players think “streak” means how many clears they’ve had this game. It means something more specific.

When two or three columns are naturally close to clearing, look for a sequence that chains them. Do not rearrange a healthy board solely to manufacture a streak; the extra bust risk usually costs more than the prospective bonus.

Time bonus: 10 points per second, even on a bust-out

Games have a 3-minute (180-second) clock. The time bonus is exactly 10 points per second remaining when the game ends. A real example from play: 87 seconds remaining → 870 time bonus.

Two things about the time bonus that surprise most players:

It is a material part of the score. At a typical strong-play pace, the time bonus contributes 600–900 points per game, roughly 10% of a good score.

It’s paid even on a 3-bust loss. If you hit three busts and the game ends early, you still collect whatever time you had left on the clock. Only the completion bonuses (no-bust bonus and perfect game bonus) are forfeited on an early ending.

The undo/peek feature takes time: place a card, see the next card, undo, then place again. At 10 points per second, 40–50 undos cost 400–500 points from the time bonus. In simulation, a strategy that peeked at every card lost about 500 displayed-score points to the clock compared with one that peeked only when the information changed the decision.

Peek selectively. The time bonus is real.

What score is “good”?

Simulations and real-play data support these rough benchmarks:

Score	Rating
Under 4,000	Below average
4,000–6,000	Average
6,000–7,500	Good
7,500–10,000	Great
10,000+	Exceptional

Competitive results generally require scores in the “Great” range.

The one-paragraph takeaway

Regular 21s, wild clears, five-card stacks, and charlie-21 combos pay differently, but none is worth sacrificing board health. A six-clear streak adds 3,750 points, though the clears must be consecutive. Chain them when the board already supports it. The time bonus pays 10 points per second even on a bust-out, so use undo peeks selectively.

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The 21 Blitz strategy guide includes column-management rules, wild-card timing, mid-game board reading, and a five-minute practice drill.