Miracle Challenge (奇跡度チャレンジ): multiply real odds into one miracle score

Basic rules of Miracle Challenge

• You start with 3 hearts and a miracle score of 1 in 1. Each round offers 2 cards (3 from round 6), and you pick one event to try. If you wait 6 seconds, the easiest card is picked for you.
• Clear the mini-game of the event you picked within a few seconds. A success multiplies your miracle score by the event's odds. A failure costs a heart but leaves the score as it is.
• The run ends when you have no hearts left. The product of the odds of every event you cleared is your miracle score.
• Every 5 rounds the speed goes up, and the mini-games get a little faster and shorter.
• Clearing a hard card of 4 stars or more gives back one lost heart (3 at most). The score is calculated the same way when a heart comes back.
• From round 6, a glowing "Wild Odds" card (ヤバい確率) with a gold frame sometimes joins as one more card. When you clear it, you can show off your result on the spot.

How to play on Asobi Lounge

• Tap a card to pick it. On a keyboard, press the number in the card's top-left corner (1 to 3, or 4 when a glowing card is offered).
• Move through a mini-game by tapping the screen (Space or Enter on a keyboard). Games where you pick a card or a die use taps on the card or die, or the number keys (1 to 5). The controls of each mini-game are written under the play area.
• The result screen shows your miracle score, your title, how your run ended, the list of miracles you pulled off and a "Certificate of Miracle". You can save the certificate as an image and share your result with the share buttons.
• When you are signed in, your best run goes to the leaderboard. Your personal best is also kept in this browser. On the result screen, Space or Enter starts another run at once.

How the score is calculated

The odds written on a card are the real odds of that event. For every success, that number (1,024 for 1 in 1,024) is multiplied in. For example, clearing heads on a coin (x2), a 6 on a die (x6) and a doubled-digit clock time (x180) gives 2 x 6 x 180 = 2,160, a miracle score of 1 in 2,160.

Large numbers are written with Japanese units (万, 億, 兆, 京 and on up to 無量大数), and anything larger as a power of ten, such as 10 to the 120th. The score is added up as a number of digits (a logarithm), so it never overflows however long you go on.

The odds on a card and how easy the mini-game is are different things. Heads on a coin has odds of 1 in 2, but the mini-game asks you to stop the coin on purpose, so how often you succeed is quite different.

The events and their odds

Each one is an everyday event whose probability can be calculated exactly. The definition behind the number is also written in small print on the card.

• Heads on a coin: 1 in 2
• A 6 on a die: 1 in 6
• Three rock-paper-scissors wins in a row: 1 in 27 (counting a win as 1 in 3, three times)
• Three dice showing the same number: 1 in 36 (6 of the 216 outcomes)
• The ace of spades from a deck: 1 in 52
• A clock showing repeated digits: 1 in 180 (24-hour clock, the 8 times 0:00, 1:11, 2:22, 3:33, 4:44, 5:55, 11:11 and 22:22 out of 1,440 minutes a day)
• Your birthday: 1 in 365 (leap days are not counted)
• Five cards of one suit: about 1 in 505 (5,148 of the 2,598,960 five-card hands; the exact value is used in the score)
• Ten coin flips in a row all heads: 1 in 1,024
• Five dice all showing 6: 1 in 7,776
• One die showing 1 to 6 in order: 1 in 46,656 (1 of the 46,656 results of six rolls)
• Ten rock-paper-scissors wins in a row: 1 in 59,049
• A royal straight flush: 1 in 649,740 (4 of the 2,598,960 five-card hands: 10, J, Q, K and A of one suit)
• Wild odds: thirty heads in a row (1 in 1,073,741,824), twenty rock-paper-scissors wins in a row (1 in 3,486,784,401), being the one person picked out of 8.2 billion (1 in 8,200,000,000, counting the world as about 8.2 billion people), a Rubik's Cube that comes out solved (1 in 43,252,003,274,489,856,000, the number of cube positions) and a shuffled deck that lands in new-deck order (1 in 52!, about 1 in 8.07 x 10 to the 67th)

Titles and comparison lines

The higher the miracle score, the higher the title. The result screen also shows a comparison line that fits the size. A comparison is shown only when your score really is at least that big, and it states only facts, such as being about as unlikely as flipping heads a number of times in a row or picking one person out of the world's population.

• Ordinary Person (below 1 in 5), Slightly Lucky (from 1 in 5), Rare Luck (from 1 in 10,000), Person of Miracles (from 1 in 1 million)
• One in Japan (from 1 in 120 million), One on Earth (from 1 in 8.2 billion), Legend (from 1 in a trillion), Loved by the Gods (from 1 in 10 quadrillion)
• Miracle of the Universe (from 1 in 10 to the 24th), Standing at the End of Probability (from 1 in 10 to the 40th)

The certificate, sharing and the leaderboard

The "Certificate of Miracle" is your result as an image. When you are signed in, your profile display name goes on it. When you are not signed in, it says "you" (あなた). The image holds only the name, the miracle score, the title, the miracles you pulled off, the number of rounds, the date and the site URL. The text sent by the share buttons holds no name.

The leaderboard lists the personal best of signed-in players, from the largest number of digits down. The numbers in the list are estimates worked out from the saved value.

Tips for playing

• Most mini-games ask for one press at the right moment. Read the order in the first second, and press without hurrying.
• The harder the card, the more your score grows, and the easier it is to fail. When your hearts run low, clearing a card of 4 stars or more is a way to get one back.
• In the birthday and clock games, the sound rises as the drum or clock nears the target. The moment it passes is a little different every time, so keep watching the screen.
• In rock-paper-scissors, a speech bubble briefly shows the opponent's hand just before the throw. Pick the hand that beats it.
• When time runs out on the card choice, the easiest card is picked for you. If you are unsure, choose by the number of hearts you have.

Frequently asked questions

Are the odds on the cards the real odds?

Yes. They are the real odds of each event: heads on a coin is 1 in 2, a royal straight flush is 1 in 649,740, and so on. Events that need a definition, such as the clock with repeated digits and the royal flush, show the definition on the card. "One person out of 8.2 billion" counts the world as about 8.2 billion people.

How do I get hearts back?

Clearing a hard card of 4 stars or more (five dice all showing 6, one die showing 1 to 6 in order, ten rock-paper-scissors wins in a row, a royal straight flush, and the wild odds cards) gives back one lost heart. You never have more than 3, and the score is calculated the same way.

Is there a limit to how many times I can play a day?

No. You can play as many times as you like and try again at once from the result screen.

Does the result image contain personal information?

When you are signed in, your profile display name goes on it. Your email address does not. When you are not signed in, it says "you". The text sent by the share buttons holds no name.

How does the miracle score grow?

The odds of every event you clear are multiplied together. Clearing 1 in 2, 1 in 6 and 1 in 180 gives 1 in 2,160. The more mini-games you clear, the more digits it gains.

Is Miracle Challenge free to play?

Yes, it costs nothing. Without signing in, you can play everything right away from this page. Your personal best is kept in this browser. Sign in with a Google account to put your best on the leaderboard and to have your profile display name on the certificate.