World Rankings

Updated today 05:03 (Swiss time) · worldwide · all levels · all ages · all time · 6 climbers, 6 ranked.

Climbers Countries All time This month This week

Country Level Age Period

Euler ID	alias	country	Ei (age) L·A·Alt How to read the Euler Index Ei (9) 1·85·54: the number in brackets is the age, from the year of birth alone, never a full date. Then three figures, separated by dots. Level is the camp the candidate has reached, 1 to 7. A higher level always ranks above, whatever the other two figures say, and a level once reached is theirs for good. Accuracy is the candidate's footing: of the last seventy problems at this level, how many out of 100 the candidate got right at the first try, without a hint. Altitude is how high the candidate climbs, among the others at the same camp: of every 100 climbers at the candidate's level — worldwide, unless a switch on the Profile says the candidate's country, the candidate's age or both — how many have a footing at or below theirs. Altitude 54 means the candidate's footing is better than or equal to 54 of every 100 of them. The candidate counts in the list and a tie counts in the candidate's favour, so an Accuracy of 100 reads 100 and nobody reads 0. The climbers counted have at least ten answers at the camp and have played in the last ninety days; their number stands beside the figure. A population with fewer than ten climbers says "Not enough climbers at this camp yet — showing worldwide". The header and the boards show the world. Beside the figure stands its band in words: top quarter is 75 and above, upper half is 50 to 74, climbing is below 50. Altitude moves a lot in the first week, then settles. A population shows a figure, never another child. Every problem has a Steepness: the share of children at the candidate's level who got it wrong first time, out of 100. It is never set by an author or a teacher; it comes from the children who have tried the problem, and it is only shown after the attempt. Steepness tells the candidate about the problem; it is not part of the Euler Index. The index shows the last seventy problems, nothing older. It can go down after a hard week and come back up after a good one; that is what practice looks like. How quickly the answers came is never part of it; perseverance and volume are counted in Eulos, not in the Ei. A Level n problem is worth n × n Eulos. A Level is finished after seven adventures; from there Base Camp is where you train, and Base Camp earns no Eulos. The Euler Index, explained in full →	Eulos (L · level · career · pace (p/a))	Δ
E-1426-MV1C9-M	Champatmaths	🇿🇦 South Africa	Ei (12) 5·90·100 7/7 top quarter	L5 · 1,625 · 3,564 · 14,256 p/a	·
E-1426-18LZW-6	Alphinest (alias withheld)	🇦🇹 Austria	Ei (12) 3·70·100 1/7 top quarter	L3 · 63 · 409 · 1,636 p/a	·
E-1626-6VTXD-Q	DokkiChamp	🇿🇦 South Africa	Ei (10) 1·85·50 2/7 upper half	L1 · 18 · 18 · 72 p/a	·
E-1426-0315B-2	Explorer (alias withheld)	🇦🇹 Austria	Ei (12) 1·100·100 1/7 top quarter	L1 · 10 · 10 · 40 p/a	·
E-1526-9DQPC-Z	ChrisCross07Genius	🇿🇦 South Africa	Ei (11) 1·90·75 1/7 top quarter	L1 · 9 · 9 · 36 p/a	·
E-1526-CB0G2-P	Explorer (alias withheld)	🇳🇱 Netherlands	Ei (11) 1·80·25 1/7 climbing	L1 · 8 · 8 · 32 p/a	·

Fewer than 10 ranked climbers in this view: listed in order, without ranks.

How the rankings are made

Ranked by the Euler Index: Level first, then the adventures finished at the Level (the k/7 beside the Ei — so 7/7 at 86 ranks above 2/7 at 100, and a climber just arrived at Level 4 ranks above every Level 3 climber), then Accuracy, then career Eulos; climbers level on all four share a rank (1, 2, 2, 4). A period board (this week, this month, Swiss calendar) ranks by the Eulos earned in the period and lists those who earned in it, so a new climber can top a board within weeks. Sort the same rows by any column from the head; the rank stays the Index rank.

The Altitude printed here is the worldwide one: of every 100 active climbers at the row's level, worldwide, how many have an Accuracy at or below the row's — so that the figure next to an Euler ID has one checkable meaning; the Profile shows the same Altitude among the climbers of a country or an age.

A rank needs ten answers at the level and a finished adventure within the last ninety days; until then a row reads climbing. A view with fewer than 10 ranked climbers lists them without ranks. The Δ column is the movement since yesterday's build on the worldwide all-time ranking: ▲ up, ▼ down, · unchanged.

A row shows, left to right: Euler ID (always) · alias (only with the parent's specific consent) · country (always) · the Ei with the age in brackets · Eulos as L · level · career · pace (p/a): the current Level, Eulos earned at this camp, everything ever earned, and pace, that is Eulos per year at this rate (career ÷ months since registration × 12; the first three months count as three). A Level n problem is worth n × n Eulos. Eulos are earned for problems solved, recoveries and finished adventures only; nothing spent is ever deducted here, and the purse is private and never on a board. The school is never shown next to a child, on any board, in any form; no gender, no birth year on its own. A withheld candidate has no row at all; a withdrawn alias disappears at once. The rankings are rebuilt once a day at 05:00 Swiss time, never live.