Letter X Bingo Pattern: How to Play and Call It
Letter X is a popular step up from the simplest patterns, giving players something slightly more involved than Four Corners or Postage Stamp without jumping straight into a long game like Coverall. Here's everything you need to know to add it to your rotation.
The Short Answer
Letter X requires marking the four corners of the card plus the center free space, forming an X shape across the grid. It's essentially Four Corners with one additional square, which makes it a natural next step in difficulty once players are comfortable with the faster opening patterns, while still playing quickly enough to keep the session moving.
How the Pattern Works
Picture a standard 5x5 bingo card: the four corners plus the center square form a diagonal X shape when connected. Since the center is almost always the free space, this pattern is often just one square harder than Four Corners in practice - the free space is already marked for every player, so it usually comes down to the same four corner numbers being called.
Letter X vs. Four Corners: What's the Difference?
They're closely related. Four Corners requires exactly the four corner squares. Letter X requires those same four corners plus the center - and since the center is typically a free space already marked for everyone, Letter X often plays at nearly the same speed as Four Corners while giving players the sense of a slightly more complete pattern. It's a good pick if you want variety without a real jump in game length.
Why It's a Solid Middle-of-Session Choice
Letter X works well positioned after your opening quick games and before your longer patterns like Picture Frame or Coverall. It keeps the pacing varied - players have already had a taste of a fast win with Four Corners or Postage Stamp, and Letter X offers a slightly different shape to chase without dragging the session down.
It's also visually distinct, which matters more than it sounds - since the pattern forms a clear X shape, it's easy for both the caller and players to picture and describe, even without pattern paper.
Static vs. Crazy Letter X
Like most patterns, Letter X can be played as either a static or crazy pattern:
Static Letter X must appear in the fixed diagonal position - corners and center, no other configuration counts.
Crazy Letter X allows the X shape to be completed using any diagonal orientation across the card, which plays somewhat faster since there are more valid configurations. This variation is less common than static, since the X shape is already fairly fixed by the card's geometry, but some organizers offer it as a faster alternative.
Calling It Clearly
A simple, clear announcement works well here: "This next game is Letter X - four corners plus the free space in the middle." Since it's closely related to Four Corners, it helps to briefly note the difference if you've played Four Corners earlier in the same session, so players don't confuse the two patterns mid-game.
Playing It With Pattern Paper
Because Letter X's shape is simple enough to picture without help, it works fine on standard bingo paper. If you want to remove any ambiguity entirely, pre-printed pattern paper with the X outlined directly on the card is the more foolproof option, especially for larger groups or newer players.
If you want the full picture of how Letter X fits alongside other patterns like Postage Stamp, Four Corners, and Coverall, see our complete guide: Bingo Patterns Explained.
Frequently Asked Questions
Is Letter X harder than Four Corners? Only slightly - it requires the same four corners plus the center free space, which is usually already marked for every player, so the two patterns play at a similar pace in practice.
Does the center square need to be manually marked? Only if your cards don't use a free space in the center. Most standard bingo cards include a free space there by default, meaning it's automatically counted.
Can Letter X be played in any diagonal direction? The standard version is fixed - corners plus center, in that specific configuration. A "crazy" variation allowing other diagonal orientations exists but is less commonly used.
Where should Letter X go in a game session? It works well as a middle-of-session pattern - a bit more engaging than an opening game like Four Corners, without the length of a closing Coverall round.
Shop Pattern Paper at Bingo Innovation, or see our full Bingo Patterns Explained guide for the complete pattern lineup.
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