Daily board
The puzzle changes at midnight UTC. Finish it and your time and hints go to the vaDALI games hub. Fewer hints rank higher, then a faster time.
A Sudoku that explains the next step.
One daily puzzle for everyone, plus casual games in Classic, Killer, and Color. Coach shows the cell, says why, and can place it for you.
Three ways to play
Classic is numbers. Killer adds cages that sum to a total. Color uses nine discs instead of digits: red, black, yellow, green, white, blue, violet, pink, and brown.
Coach
On a casual game, Coach walks one technique at a time, from a full house up through pairs and X-Wing. Watch it solve talks through each step. Solve fast shows the same note and places it quickly.
On your phone
Android and iOS can show a rewarded ad for extra hints. One ad covers that puzzle. A one-time purchase removes ads. The web game does not show ads.