detect_seq | Detects if a certain sequence is present in a matrix. |

get_cols | Get all column vectors of a matrix. |

get_diags | Get all diagonals vectors of a matrix. |

get_rows | Get all row vectors of a matrix. |

get_surround | Get surrounding elements of an element in a matrix. |

index2xy | Converts a matrix index into a sex of x,y coordinates. |

is_palindrome | Palindrome checker. |

UltimateTicTacToe | Play some Ultimate Tic-Tac-Toe? |

xy2index | Converts a set of x,y coordinates into a matrix index. |