Chess was originally called Chaturanga. It was an Indian game that represented four military divisions. (Infantry, Calvary, Elephants, and Chariotry) It then evolved through Persia into Shatranj. It then spread to Europe around 1000 CE because of the Islamic world. It changed lots of rules in the late 15th century and made the game that people play today.
After the Muslim conquest of Persia, the game spread across the Arab world. Islamic players began studying the game scientifically and wrote treatises on strategy. Moors brought the game to Spain, and it then spread through Europe, including Vikings and the British Isles, by roughly 1000 CE. European players adapted the pieces to match their medieval society, turning the Vizier into the Queen and the Elephant into the Bishop. Around 1475–1500, new rules were adopted in Spain and Italy, allowing the Queen to move across the entire board (replacing the limited movements of the old Vizier). Rules such as castling, two-square pawn moves, and the new power of bishops were finalized. The first international tournament was held in 1851. The first official World Champion, Wilhelm Steinitz, was crowned in 1886. The 20th and 21st centuries saw the introduction of chess clocks, Elo, and powerful chess engines, leading to the current era of the game.
Wilhelm Steinitz
Garry Kasparov, Magnus Carlsen, and Bobby Fischer are widely considered the best chess players of all time, based on their long-term dominance, peak ratings, and impact on the game. Other top players include Anatoly Karpov, José Raúl Capablanca, and Emanuel Lasker, known for their immense skill and championship longevity.
Garry Kasparov held the #1 spot for over 20 years and is widely regarded for his unprecedented dominance and theoretical contributions.
Magnus Carlsen had achieved the highest rating in history (2882) and is noted for his remarkable consistency across all time controls.
Bobby Fischer was famous for his 1970-1972 run, culminating in becoming World Champion, representing a massive peak in performance.