Funzzle's easy Sudoku gives you 36 or 37 numbers and never needs more than the two basic techniques: a cell with only one possible digit (a naked single), or a digit with only one possible cell in a row, column or box (a hidden single). A new easy grid comes out every day, the same for everyone.
Pick a digit and look at each 3×3 box: if the digit can only go in one cell of that box (because the same digit already sits in the cell's row or column), write it in. Then look for cells where only one digit fits. Repeating those two steps solves every Funzzle easy grid.
Funzzle's easy grids start with 36 or 37 of the 81 numbers filled in. More givens don't always mean easier, so each grid is graded by the techniques it needs, not just its count.
Yes. This page has a new easy grid every day at midnight UTC. The main Daily Sudoku moves from easy on Monday to expert on Saturday; on Mondays it is this grid.
Medium, which adds pointing pairs: when a digit's only places in a box all lie in one row or column, it can be ruled out from the rest of that row or column.