Problems by Piotr Rudnicki

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Flea on a Chessboard0.0128741927064%6.2Harden
Antiarithmetic?0.0125867240961%6.7Harden
Ants0.001043123278989%2.3Easyen
Bachet's Game0.041971704147386%5.1Mediumen
Basic Remains0.017166157487%3.4Mediumen
Brownie Points I0.0114756851891%2.4Easyen
Brownie Points II0.111336281657%6.6Harden
Closest Sums0.002283209280988%2.4Easyen
Cutting a polygon0.002053613659%7.0Harden
Ferry Loading IV0.002972434202883%2.1Easyen
Grid Speed0.04245319947%6.3Harden
How many 0's?0.0012774559780%3.5Mediumen
Knights in Fen0.0014576765485%3.6Mediumen
Magic Bitstrings0.0079715983%5.7Harden
Marbles On A Tree0.0024682673489%3.1Mediumen
Persistent Numbers0.0012646437581%4.1Mediumen
Rectilinear Polygon0.01603715070%5.9Harden
Three Powers0.00811598145491%2.3Easyen
Tri Tiling0.00601355117887%2.7Easyen
Watering Grass0.012691532117677%4.0Mediumen