
Many players mistakenly believe they need a full line of five chips, overlooking the special advantage provided by the board's corners.
According to the Sequence Official Rulebook, a Sequence is a connected series of five of the same colored chips.
Sequence Official Rulebook [edition not specified]
These rules correspond to the US edition of Sequence.
Official Rule Breakdown
A Sequence is defined as a connected series of five of the same colored chip placed either up or down, across, or diagonally on the playing surface. According to the instructions, there are printed chips in the four corners of the game board which all players must use as though their color marker chip is in the corner. When utilizing a corner, only four of your marker chips are needed to complete a Sequence. Furthermore, more than one player may use the same corner as part of their Sequence.
Example Play Situation
Alice places a blue chip on a corner space. Bob then places his blue chips in a diagonal line connecting to that same corner. Because Alice used the corner, she only needs four chips to complete her Sequence, while Bob needs five.

Common Misconceptions
- Thinking you must always have five chips even when using a corner
- Believing only one player can use a corner space
- Assuming a Sequence can be broken once completed
Quick Reference
| You Can | You Cannot |
|---|---|
| Use the four corners to complete a Sequence with only 4 chips | Try to break a Sequence that has already been achieved |
| Share corner spaces with other players | Use more than 4 chips in a corner-based Sequence |
| Connect chips diagonally, horizontally, or vertically |
Frequently Asked Questions
- What is the official rule for a Sequence in Sequence?
- A connected series of five same-colored chips, or four if using a corner.
- Can two different players use the same corner chip?
- Yes, more than one player may use the same corner as part of a Sequence.
- How many chips do I need to win if I use a corner?
- You only need four marker chips to complete the Sequence.
- Is it possible to complete a Sequence diagonally?
- Yes, Sequences can be formed up or down, across, or diagonally.






