Umar bin Ubaydullah used to say to al-Qasim bin Muhammad (may Allah have mercy on him): Nard is maysir; what is your view about chess, is it maysir? Al-Qasim bin Muhammad (may Allah have mercy on him) said: "Everything that distracts from the remembrance of Allah and from the prayer is maysir."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 20974