Math Games

A 3×3 grid of tic-tac-toe boards. Each move sends your opponent to the corresponding board — win three boards in a row to win the game.

Roll five dice and combine the numbers with +, −, ×, ÷ to hit a random target between 33 and 99. You have two minutes!

Connect dots with lines — a new dot sprouts at each midpoint. Each dot handles at most 3 connections and lines can't cross. The last player to draw a line wins!

Take turns drawing edges between dots. Complete the 4th side of a box to claim it and go again. Most boxes wins!

Both players place X's and O's freely on a 6×6 grid. Order wins by getting five of the same symbol in a row. Chaos wins by making that impossible — or filling the board without it happening.

Red and Green each have 5 pieces on opposite sides of a 5×5 grid, with a Neutron in the centre. Slide the Neutron into your home row — or trap it so your opponent can't move it — to win.

Two flies race across a randomly grown bunch of grapes. Each picks a starting grape, then takes turns hopping to adjacent unvisited ones. The fly with nowhere left to move loses!

Dandelion places flowers on a 5×5 grid; Wind picks a direction and seeds scatter from every flower to the edge. Fill all 25 squares in 7 rounds or the Wind wins!

Classic tic-tac-toe expanded into a 4×4×4 cube, shown as four horizontal layers. Get 4 in a row within a layer, vertically, diagonally on any face, or corner-to-corner through the cube.

Red and Blue each grow a number sequence from opposite corners, placing each new number in an adjacent square. When neither player can extend, whoever reached the higher number wins!

Yellow and red dots are scattered across a grid. Each turn, splat one of your dots solo (just that square) or wide (the square plus all 8 neighbours). The player with the last unsplatted dot wins!

Each player starts with ten coins. Take turns putting one coin into the centre, then take back any change strictly less than what you paid. The player with the last coin wins!

Take turns claiming numbers 1–9 — each number can only be claimed once. The first player whose collection contains any combination of numbers that adds to 15 wins!

A random sentence from a classic novel is displayed word by word. Take turns claiming words — the first player whose three words all share a common letter wins!

Players alternate placing numbers 1–10 in a triangle of 21 circles. The one circle left unfilled becomes the Black Hole — it explodes, destroying all adjacent circles. Highest surviving sum wins!

Roll a ten-sided die 25 times — each roll, every player places that number on their own 5×5 grid. Score runs of matching neighbors in rows and columns. Highest total wins!

Take turns placing 4 tokens on a 5×5 grid, then slide them one step at a time. Win by lining up 4 in a row — or placing all 4 tokens at the corners of any square!

Two players, two 10×10 grids. Roll dice to get a rectangle and place it on your board. If it doesn't fit, pass or sabotage your opponent's grid instead. Two consecutive passes ends the game — most squares filled wins!

Secretly predict how many numbers will appear in each row and column. Then take turns filling the grid with numbers or X's — each number unique per row and column. Most correct predictions wins!

A tangled graph of dots and edges appears on screen. Red edges cross — drag the dots to untangle it until every edge turns green!

A number appears — is it prime? Answer as many as you can in 60 seconds. Choose your range to make it easier or harder!

Connect matching colored dots with paths that fill every cell of the grid. Paths can't cross — plan your routes carefully!

Pick a starting number N. Each turn a tile of N or 2N appears on the 4×4 board — slide all tiles to merge matching neighbors. Every new tile and every merge scores points. Play until the board is stuck!