Math
5Arithmetic, algebra, geometry — puzzles powered by numbers and shapes.
= 18
4
7
3
5
1
6
6
3
4
9
2
1
7
5
8
3
4
9
2
6
1
Daily Drill
A 5x5 math digging adventure. Calculate your way to the target!
A + B = 9
A − B = 3
A = ?
Algebraic Substitution
Solve the variable puzzle.
7
×
3
+
5
=
26
Arithmetic Construction
Build an equation to reach the target number.
Area Estimation
Match the fluid area of irregular polygons.
$20 / $20
$5
$8
$3
$7
$2
$6
Subset Sum (Knapsack)
Fill cart to exact budget.
Words
3Letters, spelling, word-finding — language puzzles in many flavors.
Logic
5Pure-reasoning puzzles. Deduce, eliminate, solve.
Polygon Fitting
Fit geometric shapes into the container.
Tile Pattern Match
Match groups of tiles to clear the board!
8
9
2
1
8 between odd & odd
1 right of low
Logic Constraint
Arrange items to satisfy logic clues.
Voronoi Coloring
Color regions so no neighbors share a color.
?
Visual Pattern Matching
Fill the hole in the pattern sequence.