Problems by Piotr Rudnicki

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Flea on a Chessboard0.0128741626965%6.2Harden
Antiarithmetic?0.0125867240961%6.8Harden
Ants0.001043077275189%2.3Easyen
Bachet's Game0.041971660145287%4.1Mediumen
Basic Remains0.017166057387%3.4Mediumen
Brownie Points I0.0114755150892%2.2Easyen
Brownie Points II0.111336281657%6.7Harden
Closest Sums0.002283145275187%2.4Easyen
Cutting a polygon0.002053623760%6.7Harden
Ferry Loading IV0.002972368197383%2.0Easyen
Grid Speed0.042453201050%5.9Harden
How many 0's?0.0012774259380%3.5Mediumen
Knights in Fen0.0014576565385%3.6Mediumen
Magic Bitstrings0.0079705883%5.6Harden
Marbles On A Tree0.0024682573489%3.1Mediumen
Persistent Numbers0.0012646537681%4.1Mediumen
Rectilinear Polygon0.01603664568%6.1Harden
Three Powers0.00811597145491%2.3Easyen
Tri Tiling0.00601351117487%2.7Easyen
Watering Grass0.012691488114677%4.0Mediumen