XOR Stamp
Print the target picture with a handful of rubber stamps, but every stamp flips the cells it covers, so ink on ink wipes clean. Turning a stamp costs a move, so plan every print.
Play nowHow to play
Controls
DragKeyboard←→↑↓ Space Q E- Drag stamps onto the paper.
- Ink flips, so stamping twice erases.
- Turning a stamp costs 1 move.
- Keys: 1-6, Q and E turn, arrows, Space.
About the game
XOR Stamp is a quiet printing-workshop puzzle. Each level gives you a sheet of paper, a small goal picture and a few rubber stamps in odd shapes. Drag a stamp onto the paper and it inks every cell it covers, but stamping over cells that are already inked wipes them clean again. Use every stamp exactly once so the paper matches the goal picture, and the print is perfect.
The catch is the move budget. Turning a stamp a quarter turn costs one move, so you have to work out not just where each stamp lands but which way it should face before you press. Overlaps are your friend: two stamps that share a corner can carve shapes neither could make alone. There are thirty workshop sheets plus a daily sheet that is the same for everyone. Hints show the next stamp of a working solution.
Free to play in your browser. No download, no sign-up. Works on phones, tablets and computers. Your progress is saved on this device.