Connect all the light bulbs with each other and also with the main battery. You have to create as many connections to other bulbs as the number indicated on the bulb. Two bulbs can be connected with each other only vertically or horizontally and with no more then 2 connections.
Variant on the classic Spider Solitaire card game. Create sequences of cards in suit from King to Ace to remove them from the game. You can move a card or a valid sequence (independent of color) to an empty spot or to a card 1 higher in value. Click on the stack (top left) to get [...]
Every day a new Sudoku in 4 difficulty levels. Also with an archive of several months. Solve according to the sudoku rules: a number (from 1-9) can only be used once in every row, column or 3x3 box.
Create horizontal, vertical or diagonal lines with the lines on the falling blocks. Create lines of 3 or more in length to remove them. Remove as many lines as the indicated goal to advance to the next level. Touch a block to rotate it, touch a column to move the block and swipe [...]
Daily new Calcudoku Puzzles. Like Sudoku: fill the grid where every number can only occur once per row/column. But the cages (thick bordered box) must produce the given outcome with the given operator.