New Game: Tic Tac Toe Chess

When you move a chess piece, you get to write an X (Black) or an O (White) on a Sudoku board. Each region of the Sudoku board is labelled with one or two piece types. K or Q in the centre, and two for each of the others around the outside:

```
PNB
B.R
RPN
```

Win by either placing your opponent's king in checkmate, or by getting a super tic tac toe. That is, fill in X and O until you get a tic tac toe of Xs or Os in a region, then mark that region with a large X or O for the winner. Win three regions in a line to win the game.

The issue provides the game rules but names no files, tests, or entry points. Start by examining how existing games are implemented in chess-kit and identify the board, move, and win-condition entry points. Done means a playable Tic Tac Toe Chess game supports both checkmate and super tic-tac-toe victory conditions.

Written by the indexing model from the issue text.