OpenKnot Round 9 features secondary structures designed by players to create compact, pseudoknotted RNA using 240 bases. GenAI teams also will test whether their methods perform as well as the expert players at a longer length.
Check out the puzzle at: eternagame.org/labs/14343053
Eterna is a videogame where you can invent medicine. You solve RNA design puzzles, and your solutions get synthesized and tested by biochemistry & robotics!
- Eternacon 12 will be Sunday, July 26, 9am to 2pm PT featuring talks on player pseudoknot design techniques, the Montparnasse algorithm solving the Eterna100, an RNA scaffold for cryo-EM, and results for our pilot Replicase puzzle. Free to register at eternagame.org/eternacon/2026
- Eterna's newest puzzle challenges players to design 240-base RNA strands that will fold into compact pseudoknots. The puzzle provides a metric for counting the number of pairs that cross to form large, synthetic pseudoknots. Check out the puzzle at eternagame.org/labs/14333719
- A new 3-state Replicase challenge has been launched on Eterna and will only be open for two weeks before sequences are collected for experimental testing at @RDasLab. Will Eterna players be able to improve the catalytic activity of the RNA polymerase? eternagame.org/labs/14183416
- In addition to the RibonanzaNet server hosted by @RDasLab, RNA structure fans can try the new pseudoknotted prediction model in Eterna's RNet Study collection. The 108 puzzles are a mix of experimentally-validated structures and synthetic fabrications. eternagame.org/collections/13…

