ARC-AGI-3 · Late edition · October 9, 2026

Yi-Chia Chen takes ARC-3 lead as mtg climbs to third

Chen’s public score reached 59.17%, while Tufa Labs improved to 56.52% and mtg made a six-point climb into the top three.

ARC Daily sports desk · Written with GPT-6 Sol

Published October 9, 2026. Board date October 9, 2026. Exact source observations remain in the archived reporting data.

A new name at the top

Yi-Chia Chen took the ARC-AGI-3 public lead with 59.17%, ahead of Tufa Labs at 56.52%. ARC Prize announced the change, and the closing board confirms the order. The observed score event shows Chen moving from 55.77% and second place to the lead; the record does not establish a reliable previous-evening team comparison for her. Tufa also improved, from an observed 55.89% to 56.52%, even as the lead changed hands. These are public standings, with the final private result still to come.

ARC-3 public leaderboard and observed history · ARC Prize — standings post

The chase tightens

mtg jumped from seventh in its earlier tracked observation to third at 44.32%, a verified gain of 5.99 points. NVARC3 reached 40.97% and stood fifth at the close; the score-event record shows its climb from 37.51%, although its previous-evening comparison is unavailable. Majkel1337 held fourth at 42.66%, with the last dance 🕺 sixth at 39.30% and dreach.ai seventh at 39.11%. Nhan Duc Nguyen moved from 19th at the prior evening observation to eighth at 38.84%.

ARC-3 public leaderboard and observed history

Experience across the field

The public NVARC3 roster lists Ivan Sorokin and Jean-François Puget’s verified cpmpml account. ARC Prize credits both with the 2025 NVARC championship; that historical result belongs to the earlier team and season. Lord Han Solo stood 13th, while David Hartmann and Jan Disselhoff were farther down this ARC-3 board. Hartmann and Disselhoff were credited on the ARChitects’ 2025 runner-up team, but they are separate 2026 entries here.

ARC-3 public leaderboard and observed history · ARC-3 public roster observation · ARC-3 public roster observation · ARC Prize — 2025 results · ARC Prize — 2025 results · ARC Prize — 2025 results

More movement below

AFF AI CLUB climbed to 27th at 33.92% and ERS to 57th at 33.08% in the prior-evening comparison. The keithtyser entry was 69th at 32.74%; its score was unchanged in the available comparison. Tufa Labs posted a playful message about its position earlier in the day. It is competition banter, not evidence of the team’s hardware, spending or approach.

ARC-3 public leaderboard and observed history · Tufa Labs — banter post

From the box score

Team	Rank	Score	Rank change	Score change
Yi-Chia Chen	1	59.17	Not available	Not available
Tufa Labs	2	56.52	Down 1	+0.63
mtg	3	44.32	Up 4	+5.99
Majkel1337	4	42.66	Down 1	0
NVARC3	5	40.97	Not available	Not available
the last dance 🕺	6	39.3	Down 2	0
dreach.ai	7	39.11	Down 2	0
Nhan Duc Nguyen	8	38.84	Up 11	+4.1
artificialagencylab.com	9	38.62	Down 3	0
復活の混テキスト	10	38.15	Down 2	0
Lord Han Solo	13	36.61	Down 2	0
Son & Mark & Ronen	19	35.45	Down 2	0
AFF AI CLUB	27	33.92	Up 98	+2.38
ERS	57	33.08	Up 223	+2.95
keithtyser	69	32.74	Down 8	0
言和小天使🪽应援会！	96	31.96	Up 34	+0.48
David Hartmann	352	29.83	Down 33	0
Jan Disselhoff	613	28.23	Down 55	0

Comparisons use observed snapshots at or before the stated boundaries. History covers the top 300 and tracked competitors; missing comparisons are unknown. Score-event entries are context, not net daily gains. Unfamiliar names are not necessarily new entrants.

Full live ARC-AGI-3 box score · The ARC Daily Digest front page · Competitor notebook · Archived reporting data