Choose your tiles
Use at least two number tiles and at least one symbol to make an equation.
Learn GoSum
How to Play
Build number equations, connect them crossword-style and make every tile count. The aim is simple: finish with the highest score.
2–4players
6 + 2starting tiles
1equals sign per sum
01
The aim
Make sums. Make them connect. Score more.
GoSum uses number and symbol tiles to create mathematical equations on a shared board. New sums interlock with what is already in play, just like words in a crossword. Players take turns clockwise, and the player with the highest final score wins.
Your tiles
Start with eight tiles
At the start, each player has six number tiles and two symbol tiles. Number tiles carry their own score value; symbols do not score.
81
41
23
63
34
92
+
=
★
Blank tiles are wild numbers. A blank can stand for any number, but never a symbol. It scores zero points, and once its number has been chosen it cannot be changed later.
Taking a turn
Build a valid GoSum
Use an equals sign
Every GoSum must contain an equals sign and resolve correctly.
Connect to the board
After the opening move, build from the numbers and sums already in play.
Score the move
Add the score values of the number tiles in the completed sum, then apply any bonuses.
First move: the opening GoSum is placed horizontally or vertically across the green centre START / equals square.
What counts?
Valid and invalid GoSums
A GoSum must be a complete, correctly resolved equation. These examples come directly from the game rules.
8 = 2 × 4
2 × 4 = 8
10 − 4 + 2 = 8
102 − 8 = 94
02 × 4 = 8
No leading zero.
2 × 8 = 4 × 4
A GoSum must resolve to an answer.
4 + 2 = 6 = 2 × 3
Only one equals sign.
You can extend an existing GoSum. For example, 2 + 6 = 8 can become 82 + 6 = 88 by adding an 8 to each side. If you change an existing number or sum, its answer must change too.
Tiles cannot sit directly next to one another unless they form part of the same valid GoSum.
Boost your score
Bonus squares
Land a number tile on a bonus square to increase the value of the tile or the whole GoSum. Bonus squares cannot be used as equals signs.
Double Number
Doubles the score value of the number tile covering it.
Triple Number
Triples the score value of the number tile covering it.
Double Sum
Add the number-tile values in the GoSum, then double the total.
Triple Sum
Add the number-tile values in the GoSum, then triple the total.
+50 pointsPlay all eight of your tiles in a single turn and earn a 50-point bonus.
Your options
Pass or swap tiles
Pass
If passing is tactically useful, you can miss your turn and play continues clockwise.
Exchange tiles
On your turn you can exchange some or all of your tiles for new ones. Exchanged tiles go back into their correct pools, and your turn ends.
Finishing the game
Highest score wins
A game can end when no player can make another GoSum, when an agreed time limit is reached, or when a pre-agreed target score is achieved with every player having had an equal number of turns.
An optional turn timer can also be used.
🏆
Final scoring
Deduct the score value of any number tiles you still hold from your total. The player with the highest score after those deductions is the winner.
That’s it
Think numbers. Spot connections. Go for the big score.
The best GoSum is not always the first one you see. Look for ways to extend the board, use your high-value tiles well and make those bonus squares work for you.
Back to GoSum.fun