public void Run()
{
Player player = Player.X;
Player?winner = null;
do
{
Tuple <int, int> move;
try {
move = io.AskNextMove(player, board);
} catch {
io.DisplayError(GameError.CouldNotParseMove);
continue;
}
if (!ValidateMove(move))
{
io.DisplayError(GameError.CouldNotParseMove);
continue;
}
try {
board[move.Item1, move.Item2] = player;
} catch (InvalidOperationException) {
io.DisplayError(GameError.CellAlreadyOccupied);
continue;
}
player = GetNextPlayer(player);
winner = analyzer.DetermineWinner(board);
} while (!winner.HasValue);
io.DisplayWinner(winner.Value);
}