Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1926 |
290 |
2270 | (54) | 16 |
| 1927 |
219 |
2308 | (55) | 0 |
| 1928 |
168 |
2347 | (50) | 12 |
| 1929 |
153 |
2359 | (49) | 5 |
| 1930 |
127 |
2375 | (45) | 19 |
| 1931 |
92 |
2393 | (50) | 0 |
| 1932 |
70 |
2411 | (46) | 11 |
| 1933 |
76 |
2404 | (39) | 22 |
| 1934 |
84 |
2393 | (39) | 21 |
| 1935 |
116 |
2374 | (37) | 26 |
| 1936 |
85 |
2402 | (43) | 0 |
| 1937 |
54 |
2430 | (33) | 51 |
| 1938 |
65 |
2415 | (44) | 15 |
Rating table notes
|
| Biographical data |
| Name: Appel, Isaak |
| Born: 1905 |
| Died: 1941 |
| |
| Notes: |
| Gaige has date of birth as 'c1905' and date of death as 'c1941'. |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1921-1930, page 317 |
| Di Felice, Chess Results, 1931-1935, page 374 |
| Di Felice, Chess Results, 1936-1940, page 346 |
| Gaige, Chess Personalia, page 12 |
| Skinner and Verhoeven, Alexander Alekhine's Chess Games, page 587 |
| Thulin, Name index to CTC, page 13 |
| Woodger, Reuben Fine, page 347 |
| |
