Problems by Piotr Rudnicki

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Flea on a Chessboard0.0128743928565%6.0Harden
Antiarithmetic?0.0121869642461%6.9Harden
Ants0.001043278293490%2.3Easyen
Bachet's Game0.041971740149286%5.2Mediumen
Basic Remains0.017166758287%3.2Mediumen
Brownie Points I0.0114758153292%2.3Easyen
Brownie Points II0.111336291759%6.8Harden
Closest Sums0.002283270286888%2.2Easyen
Cutting a polygon0.002053623760%6.7Harden
Ferry Loading IV0.002972498209084%2.0Easyen
Grid Speed0.04245320945%7.4Harden
How many 0's?0.0012775160480%3.3Mediumen
Knights in Fen0.0014577365985%3.5Mediumen
Magic Bitstrings0.0079746284%5.1Mediumen
Marbles On A Tree0.0024684575289%3.0Mediumen
Persistent Numbers0.0012646938081%4.0Mediumen
Rectilinear Polygon0.01603735271%5.7Harden
Three Powers0.00811660151391%2.2Easyen
Tri Tiling0.00601409123087%2.5Easyen
Watering Grass0.012691644128078%3.4Mediumen