Lights On Solver
A simple 3x3 Lights On Solver. The backend is capable of miscellaneous dimensions, since it is a implementation of a LU decomposition on a vector space over GF(2) of a matrix generated by a 5 point star stencil. I currently block all requests which are not 3x3 matrices.
The red dots represent which tiles you have to toggle to get to a solution.
One of the reasons I made this was to test my jsonrpc 2.0 http 1.1 library written in C++ with the library Capn'Proto.
The other reason is that I'm too lazy to solve the puzzles in the game 'Hammerwatch'.
Not my video, but this is an example of such a puzzle.