Problems by Piotr Rudnicki

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Flea on a Chessboard0.0128743528365%6.0Harden
Antiarithmetic?0.0125867841561%6.7Harden
Ants0.001043236289589%2.3Easyen
Bachet's Game0.041971724148686%5.1Mediumen
Basic Remains0.017166557987%3.3Mediumen
Brownie Points I0.0114757752791%2.3Easyen
Brownie Points II0.111336281657%6.6Harden
Closest Sums0.002283243284088%2.4Easyen
Cutting a polygon0.002053623760%6.4Harden
Ferry Loading IV0.002972456204883%2.1Easyen
Grid Speed0.04245320945%7.2Harden
How many 0's?0.0012774860080%3.4Mediumen
Knights in Fen0.0014577165685%3.6Mediumen
Magic Bitstrings0.0079726083%5.7Harden
Marbles On A Tree0.0024684575189%3.1Mediumen
Persistent Numbers0.0012646737881%4.0Mediumen
Rectilinear Polygon0.01603735170%6.2Harden
Three Powers0.00811654150691%2.3Easyen
Tri Tiling0.00601394121587%2.6Easyen
Watering Grass0.012691549119277%3.9Mediumen