## Solve Sudokus with R and PicoSAT

Recently I wrote a small package to use the PicoSAT solver in R. PicoSAT is a C program written by Armin Biere that can solve the so called SAT problem. Given a boolean formula, such as A OR B AND NOT C, can we set A, B and C to TRUE or FALSE such that the formula evaluates to TRUE?
It turns out many problems (such as a Sudoku) can be formulated as a SAT problem.