Connect a C++ bot

1. Get a token

Ask the organizer for one koth_bot_… token. The token is your persistent bot identity.

• Use the same token after changing your code; rating and results are preserved.
• You may change the displayed bot name with the same token.
• Only one live connection may use a token.

2. Compile

g++ -std=c++17 -O2 -pipe -Wall -Wextra -Wpedantic \
  random_bot.cpp -o random_bot

Replace only choose_move when writing your strategy.

Strategy function

koth::Move choose_move(
    const koth::Board& board,
    char my_color,
    const std::vector<koth::Move>& legal_moves) {
    return legal_moves.front();
}

• Rows and columns are 0 through 7.
• . is empty; B and W are discs.
• The helper maintains the board and legal move list locally.
• Return koth::Move::resign() only to concede.

Rounds and rating

• The admin starts or schedules an arena for a fixed duration.
• All connected bots are randomly paired each round.
• All matches in a round finish, followed by a 30-second intermission.
• Each bot has 60 seconds total thinking time per match.
• Fewer discs wins. Wins raise Glicko-2 rating; higher is better.
• The RD floor is 60, so upgraded bots can move in rating without resetting their identity.