Global Soloist Rank: #1401
Global Soloist Score: 0


Name: Bearpaw
Location: Tropical Islands
Started Folding: 05/10/08
About me:

Retired mathematician-theoretical physicist living on a tropical island---Foldit is a nice hobby when staying out of the sun.

The maximization techniques used for foldit are basically locallized gradient searches in a constrained path-space---each perturbation of the protein leads to a valuation of a "directional derivative"----the real problem is that the constrained path-space has infinite dimension and if the local extrema are isolated and "far" from eachother it can be very frustrating to try to improve the score by minor perturbations.

Just think of being on a mountain-top---blindfolded with a long extendible cane. You want to go "Up-hill"---you reach out with the cane horizontally and if you touch something you move in that direction---else just try another direction. If the cane is too short then you have to extend it(i.e. by using larger perturbations).

Good Folding to All!

Group: Team Canada


CategorySolo RankEvo Rank

Soloist Puzzle Scores


ContestRankScoreLast Played
A Freestyle Design 40 Open to all36/578,94008/15/12
A Freestyle Design 20 Open to all133/2138,43911/25/11
A HIV Protease open to all 149/3949,25408/15/12
A GTPase Ras Open To All34/11110,24508/04/12


Junior Soloist
Achieved Soloist rank 30 or better in at least 5 puzzles
Baby Steps
Complete ten moves
Step Routine
Complete one hundred moves
Moving Up
Complete one thousand moves
Professional Mover
Complete ten thousand moves
Finish all of the 'Sidechains' intro puzzles
Backbone Packing
Finish all of the 'Backbone Packing' intro puzzles
Hydrogen Bonding
Finish all of the 'Hydrogen Bonding' intro puzzles
Hydrophobics and Hydrophilics
Finish all of the 'Hydrophobics and Hydrophilics' intro puzzles
Tools and Types
Finish all of the 'Tools and Types' intro puzzles
Finish all of the 'Sequences' intro puzzles
Protein Design
Finish all of the 'Protein Design' intro puzzles
More Molecules
Finish all of the 'More Molecules' intro puzzles

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Developed by: UW Center for Game Science, UW Institute for Protein Design, Northeastern University, Vanderbilt University Meiler Lab, UC Davis
Supported by: DARPA, NSF, NIH, HHMI, Amazon, Microsoft, Adobe, Boehringer Ingelheim, RosettaCommons