LOGIC
Numbers, grids and deduction
Balance equations, trail consecutive numbers, fit pieces into a grid, lay pipes between matching dots and eliminate impossibilities until only the answer is left.
CALCROSS
A math crossword puzzle. Place number tiles so every row and column equation works. Five difficulty levels.
PLAY NOWNUMTRAIL
Fill the grid with consecutive numbers forming a continuous path. Each number must be adjacent to the next.
PLAY NOWLOGICGRID
Read the clues, eliminate impossibilities and deduce who matches what.
PLAY NOWBLOCKFIT
Fill the grid by placing tetromino pieces. Every cell must be covered and no pieces overlap.
PLAY NOWFLOWLINK
Connect matching letter pairs with paths. Paths cannot cross. Fill every cell in the grid.
PLAY NOWFLOWLADDER
Lay pipes between matching dots and fill every cell. Sixty levels from a 5×5 grid with three pipes to 9×9 with nine, each one freshly generated.
PLAY NOW