Input (grade 13): Howard Staunton (1810 â "22 June 1874) was an English chess master who is generally regarded as having been the world's strongest player from 1843 to 1851, largely as a result of his 1843 victory over Saint-Amant.
Output (grade 4): Howard Staunton (1810 â "22 June 1874) was an English chess master. He was probably the world's strongest player from 1843 to 1851.