Problems by Piotr Rudnicki

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Flea on a Chessboard0.0128742427364%6.2Harden
Antiarithmetic?0.0125867741461%6.7Harden
Ants0.001043219288290%2.2Easyen
Bachet's Game0.041971710147486%5.2Mediumen
Basic Remains0.017166157487%3.4Mediumen
Brownie Points I0.0114757352391%2.3Easyen
Brownie Points II0.111336281657%6.6Harden
Closest Sums0.002283219281988%2.4Easyen
Cutting a polygon0.002053613659%7.0Harden
Ferry Loading IV0.002972450204183%2.2Easyen
Grid Speed0.04245320945%7.2Harden
How many 0's?0.0012774559780%3.5Mediumen
Knights in Fen0.0014577165785%3.6Mediumen
Magic Bitstrings0.0079715983%5.8Harden
Marbles On A Tree0.0024683774489%3.1Mediumen
Persistent Numbers0.0012646537581%4.1Mediumen
Rectilinear Polygon0.01603715070%5.9Harden
Three Powers0.00811602145891%2.3Easyen
Tri Tiling0.00601376119887%2.6Easyen
Watering Grass0.012691537118077%4.0Mediumen