New Testament Chess: A Free Family Game About the Witnesses of Christ
New Testament Chess is a free chess game where 101 New Testament characters are the pieces. Every capture opens both…
Few moments in a Latter-day Saint family are as electric as opening a mission call. Grandparents drive in, cousins join on video and everyone crowds around a laptop. Then a young man or woman reads aloud where they'll spend the next two years, or eighteen months, serving the Lord.
Since 2018, almost all calls have been delivered online. The Church explained that before opening the letter, missionaries are notified so they can "gather together family and friends to participate in the experience." Today more than 90,000 missionaries are serving in more than 500 missions, so the guessing game has a lot of possible answers.
This guide covers simple ideas for a mission call opening party, plus a step-by-step look at Field Revealed, a free guessing game we built so friends and family can predict the mission on a map before the call is read.
Field Revealed turns everyone's guesses into a live world map. One person hosts. Usually that's a parent, but it can be the missionary. Guests guess from their phones, and when the call is read, the host reveals the real mission and the game shows who was closest. It's free, and there's no app.
Choose a title (Elder, Sister, or Elder and Sister), enter the missionary's name and pick your best guess for when the call will arrive. You can add a hometown or ward and a message to guests. You can also add an email so the game can send reminders and results.

You'll get two links. One is a sharing link for guests. The other is a private host link that you'll need to reveal the mission, so bookmark it.
Send the sharing link to a family group chat. Each guest searches the full list of missions or taps a spot on the map. Then they add their name and tap Lock in my guess. Every guess appears on the board and the map right away.

A countdown shows roughly how many days are left until the call is expected. Guesses stay open until the envelope is opened. Once you know the opening time, the host can set it, and the countdown becomes exact.
On the day of the opening, the host taps Open Family View. The TV shows the map with every guess, a QR code so latecomers can add a guess, and how many people have guessed.

After the missionary reads the call aloud, the host types the mission and taps Reveal the mission, then taps again to confirm. That second tap is there so nobody spoils it by accident. Every screen updates together.
First, the game pauses on a quiet screen with the missionary's name and mission and a verse: "If ye have desires to serve God ye are called to the work" (Doctrine and Covenants 4:3). It invites everyone to "take a moment with this. The guesses will be here when you are ready."
Then the map flies to the mission, and the board ranks every guess by distance.

In our test game, Grandma picked the Spain Barcelona Mission exactly. Uncle Sam, who guessed Mexico, was 5,930 miles away. Expect some good-natured teasing.
The days between submitting papers and the call can feel long. A few ways to make the wait meaningful:
Yes. Creating a game, guessing and revealing are all free. No one needs an account or an app.
No. Guests only need a name and a guess. An email is optional, and it's used to send the reveal and results.
The game measures how far each guess is from the real mission and names the closest guess.
Absolutely. Many missionaries enjoy guessing their own call.
No. Field Revealed is an independent family keepsake from Weak Things. It is not affiliated with or endorsed by The Church of Jesus Christ of Latter-day Saints. Mission calls come only through the Church's official process.
The games are free because the shirts aren't. Shop shirts. Love God.