[[Image:Chlebowski-Bajazyt w niewoli.jpg|thumb|right|250px|Painting by [[Stanisław Chlebowski]], ''Sultan Bayezid imprisoned by Timur'', 1878, depicting the capture of [[Bayezid I|Bayezid]] by Timur.]]
A batalla comeza cun ataque das forzas de Tamerlán sobre os otománs<ref>Mustafa Cezar, Midhat Sertoğlu et al. ''Mufassal Osmanlı Tarihi''. İskit Yayınevi. (1957), p. 198</ref>, que estaban exhaustos logo que as tropas de Tamerlán se fixeran co control das fontes de auga <ref>Colin Imber ''The Ottoman Empire 1300-1650. The Structure of Power''. Palgrave Macmillan (2002), p. 18</ref> pero conseguiron facerlle fronte e contratacaron, así e todo o cambio de bando dos [[qaraei]] levou ao colapso ao franco esquerdo do exército otomán, que se viu prendido entre dous fogos
battle began with a large-scale attack from the Ottomans, countered by swarms of arrows from the Timurid horse [[archers]]. Several thousands were killed and many surrendered to Timur. During the battle the main water supply of both armies, [[ Çubuk Creek]] , was diverted to an off-stream reservoir near the town of [[Çubuk]] by Timur, which left the Ottoman army with no water. The final battle took place at Catal hill, dominating the Çubuk valley. The Ottoman army, both thirsty and tired, was defeated, though Bayezid managed to escape to the nearby mountains with a few hundred horsemen. However, Timur had the mountains surrounded and, heavily outnumbering Bayezid, soon captured him. Despite being heavily outnumbered, the [[Ottoman army]] was further weakened by the desertion of the [[Qaraei|Tatars]] and the [[Sipahis]] from the [[Anatolian beyliks]], who left Bayezid alone and joined Timur's forces.