1. Allis, L.V.: A knowledge-based approach of connect-four. ICGA J. 11(4), 165 (1988)
2. Mishiba, S., Takenaga, Y.:
IEICE general conference p. 26 (2017), (in Japanese)
3. Quixo page on BoardGameGeek website. https://boardgamegeek.com/boardgame/3190/quixo, (accessed 17 September 2021)
4. Quixo page on Gigamic website. https://en.gigamic.com/game/quixo, (accessed: September 17 2021)
5. Quixo source code repository. https://github.com/st34-satoshi/quixo-cpp