Letter Version
Instructions
The object of the game is to change one
combination of symbols into another by adding, inserting
or deleting rules one at a time.
Change ba to bb
Rules: Ab, Ba, aA, Aa, bB, Bb
This puzzle can be solved in two steps:
| Start with ba | b | a | |
|
| Add Ab to ba to form baAb | b | a | A | b |
| Delete aA to form bb | b | b | |
|
See a demo.
To begin playing games in the letter version click here.