Four Corners
Mark the four corners of the 3×3 grid.
30-Ball
Easy
How to Win
Mark only the four corner cells: top-left, top-right, bottom-left, bottom-right.
Strategy Tips
- Play multiple cards to increase your odds of hitting this pattern first.
- Enable auto-daub so you never miss marking a number.
- Watch the game timer and stay alert — faster games mean tighter competition.
Where You'll See This Pattern
Four Corners appears regularly in 30-ball rooms, and other bingo variants. Check individual game descriptions to see which patterns are active before each round starts.
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