Migrating from Pentasol

Pentasol is the community text format for 5T and 5D games. Each line is (col,row)dir centerdist, where centerdist = pos − ⌊n/2⌋ is the signed offset of the new point from the centre of its line.

The application reads and writes Pentasol, so existing corpora convert losslessly into MSR — gaining provenance metadata and the other two variants:

morpion-solitaire convert game.psol --variant 5T --to msr -o game.msr
morpion-solitaire convert game.msr --to pentasol            # and back

Because Pentasol does not record the variant, you supply it with --variant when reading.

See the specification for the exact mapping.