| 100% | KARPOV | 6 | Anatoly —, world chess champion from 1975-85 |
| 68% | KARPOV | 6 | World Chess champion, 1975-85 |
| 65% | KARPOV | 6 | Chess's world champion from 1975 to 1985 |
| 64% | BORIS | 5 | World chess champion from 1969-72 |
| 63% | MAGNUSCARLSEN | 13 | World Chess Champion from 2013 to 2023 |
| 62% | TAL | 3 | Former world chess champion from Russia |
| 47% | KARPOV | 6 | Anatoly —, 1993-99 FIDE world chess champion |
| 46% | TAL | 3 | 1960-61 world chess champion |
| 46% | TAL | 3 | 1960s world chess champion Mikhail ___ |
| 46% | EUWE | 4 | 1930s world chess champion Max |
| 46% | TAL | 3 | Former world chess champion Mikhail |
| 46% | TAL | 3 | Former world chess champion Mikhail ___ |
| 46% | BOBBYFISCHER | 12 | American-born chess master who was the World Champion from 1972 to 1975: 2 wds. |
| 45% | TAL | 3 | Youngest world chess champion before Kasparov |
| 45% | ANAND | 5 | Vishy __, World Chess Champion before Carlsen |
| 45% | SPASSKY | 7 | Former Russian world chess champion: Boris __ |
| 45% | TAL | 3 | Mikhail —, 1960-61 world chess champion |
| 45% | DINGLIREN | 9 | Became World Chess Champion in 2023 |
| 45% | TAL | 3 | Mikhail, world chess champion of the sixties |
| 45% | CANTO | 5 | Miguel —, WBC Flyweight champion from 1975-79 |
| 44% | RUS | 3 | Home country of many world chess champions: Abbr. |
| 44% | STRACEY | 7 | John H —, WBC Welterweight champion from 1975-76 |
| 44% | OMAR | 4 | World hurdling champion from Jamaica, ___ McLeod |
| 41% | GUKESHDOMMARAJU | 15 | Grandmaster who became the youngest-ever World Chess Champion in December 2024 |
| 40% | ANATOLYKARPOV | 13 | Six-time World Chess Champion and frequent rival of 15-Across (2 wds.) |
| 39% | KASPAROV | 8 | Garry __, Russian politician, chess world champion |
| 39% | KARPOV | 6 | Two time world chess champion with a style described as that of a "boa constrictor" |