Target Number

Five cards, six operators, 75 seconds. Land on the number.

Updated July 16, 2026

Hitting the Target

Every round of Target Number is the same shape: a target number sits at the top of the board, you get five number cards, and you have 75 seconds to build a math expression whose result is as close to that target as possible. A result equal to the target — a distance of zero — is the best outcome the game recognizes.

The target isn't picked at random and then hoped for. The generator repeatedly tries a candidate target inside a set range, then hands your exact five cards to the same recursive solver that later reveals the "best possible" answer. If that solver finds a way to hit the candidate exactly, the game locks it in as your target. It tries up to 100 candidates before giving up and falling back to a plain random number in range, so most rounds you play do have a true zero-distance solution sitting there for you to find.

The clock is unforgiving once it starts. It ticks down from 75, and once you're inside the final 10 seconds the timer switches to an urgent visual state and starts audibly ticking. In a duel, an AI opponent is racing the same puzzle in parallel — whoever's distance is smaller when the round ends wins it, so "close" is often good enough, but "exact" is always the safest place to be. There's no partial credit for effort here: a half-built expression sitting on the board when the clock runs out only counts if it happens to already evaluate to something valid, so the pressure to keep your formula in a submittable state never really goes away.

The Number Pool and Operators

Your five cards are drawn from two pools: a large pool of {25, 50, 75, 100} and a small pool of {2, 3, 4, 5, 6, 7, 8, 9, 10}. How many large cards you get is tied to your current matchmaking rating, and it scales in three steps:

• Below 1350 rating: zero large cards, five small cards. Targets are picked between 50 and 250.
• 1350–1849 rating: one large card, four small cards. Targets are picked between 100 and 550.
• 1850 rating and up: two large cards, three small cards. Targets are picked between 100 and 999 — a noticeably harder search space.

Six operator buttons sit below the cards: +, −, ×, ÷, and an open and close parenthesis for grouping. Number cards are single-use — click one and it locks itself out until you remove it with BACK or wipe the board with CLEAR — but operators have no such limit. You can chain as many plus signs or parenthesis pairs as your expression needs.

Building an Expression

You build your formula by clicking, not typing. Every number and operator you tap gets appended to a running token list, rendered as a strip of tiles above two live readouts: Result and Distance. Both update after every single click, so you always know where a move leaves you before you commit further.

The engine only accepts a submission that evaluates to a non-negative whole number — standard Countdown rules. A fraction, a negative total, or a dangling operator at the end of your token list all count as invalid; the result readout shows dots instead of a number, and hitting SUBMIT on an invalid expression flags "Invalid syntax" and does nothing. Fix it by continuing to build, or by using the controls:

• BACK removes the last token you placed. If that token was a number card, the card unlocks and goes back into play.
• CLEAR wipes the whole expression and frees every card at once.

One detail worth knowing: your tokens are evaluated as real math, not read left to right, so × and ÷ resolve before + and − automatically. You only need parentheses when you want to force an addition or subtraction to happen before a multiplication or division that would otherwise jump the queue.

A Search Strategy That Scales

The solver generating your target (and later revealing the ideal answer) works by recursive pairwise merging: it takes any two numbers still available, combines them with addition, subtraction (positive results only), multiplication, or integer division, replaces both with that single result, and repeats on the shorter list. It keeps whichever intermediate value lands closest to the target across every branch it explores.

That's exactly the procedure a strong player runs by hand, just without the brute force. A repeatable approach beats hunting at random:

• Anchor first. If you have a large card, check what multiplying or dividing it by a small card gets you, and how far that leaves you from the target.
• Look for near-multiples. If the target divided by one of your cards lands close to a whole number, that pairing is usually your fastest route.
• Trim with small cards last. Once you're within a handful of the target, use remaining small cards with + or − to close the last bit of distance.
• Reach for parentheses only when precedence fights you — for example forcing (a − b) to happen before it gets multiplied by c.

This matters more as your rating climbs. At 1850+ you're working with two large cards and three small ones, and the number of two-card combinations you could try roughly doubles compared to the one-large-card tier. Anchor, scale, trim is a lot faster than testing pairs one at a time when the search space has grown that much. It also mirrors how the solver itself avoids wasted work: subtraction branches only run when the result stays positive, and division branches only run when it comes out even, so both the machine and a sharp player quietly discard the combinations that can never produce a valid whole number in the first place.

Example: Reaching a Target

Say your rating puts you in the 1350–1849 band, so you're dealt one large card and four small ones: 100, 9, 4, 6, 7. The target reads 346, inside that tier's 100–550 range.

Anchor on the large card first. 100 × 4 = 400 — click 100, then ×, then 4. The Result readout shows 400, Distance shows 54. That's a wide gap, but 54 is a friendly number: 9 × 6 = 54 exactly.

Continue the expression rather than starting over: click −, then 9, then ×, then 6. Because × resolves before − automatically, the full token string 100 × 4 − 9 × 6 evaluates as 400 − 54, with no parentheses required. Result flips to 346, Distance drops to 0 (EXACT!) in green.

Hit SUBMIT FORMULA and the round ends immediately with an exact-match flash and banner — the strongest result the game recognizes, and it left the 7 card completely unused. Countdown rules never require spending every card, only landing on the number.

When to Take the Approximate Path

An exact hit isn't always available with the time you have left, and the win condition rewards "good enough" more than you might expect. In a duel, your distance is checked against the bot's own distance, and you win any round where your distance is less than or equal to the bot's — not just when you're both exact.

The bot's accuracy is tied to its own rating, and it isn't always perfect either:

• Under 1400: the bot lands anywhere from 2 to 19 away from the target.
• 1400–1699: exact about 60% of the time, otherwise off by 1 to 8.
• 1700–1999: exact about 85% of the time, otherwise off by 1 to 3.
• 2000 and up: exact every round.

Submitting a formula with a small nonzero distance still registers as a hit in the game's difficulty system and shows a yellow "NEAR MATCH" flash, as long as your distance beats or ties the bot's. Against a sub-1400 bot, being off by 5 can easily win the round. Against a 2000+ bot, only zero will do.

One more thing worth knowing before you race the clock: submitting isn't the only way a formula gets scored. If the timer hits zero or the bot locks in its formula first, the round grades whatever valid expression is currently sitting in your token strip — whether or not you ever clicked SUBMIT. Building a safely valid expression early, then refining it, protects you from being caught mid-edit when time runs out. Pairing this with faster mental math techniques is the quickest way to shave seconds off your search.

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