Problems by Piotr Rudnicki

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Flea on a Chessboard0.0128741927064%6.2Harden
Antiarithmetic?0.0125867140861%6.8Harden
Ants0.001043088276189%2.2Easyen
Bachet's Game0.041971697146887%5.0Mediumen
Basic Remains0.017165957287%3.4Mediumen
Brownie Points I0.0114755150892%2.2Easyen
Brownie Points II0.111336281657%6.7Harden
Closest Sums0.002283183278788%2.3Easyen
Cutting a polygon0.002053623760%6.9Harden
Ferry Loading IV0.002972420201683%2.1Easyen
Grid Speed0.042453201050%6.4Harden
How many 0's?0.0012774559780%3.5Mediumen
Knights in Fen0.0014576765485%3.6Mediumen
Magic Bitstrings0.0079705883%5.9Harden
Marbles On A Tree0.0024682573389%3.1Mediumen
Persistent Numbers0.0012646537681%4.1Mediumen
Rectilinear Polygon0.01603704970%5.9Harden
Three Powers0.00811596145291%2.4Easyen
Tri Tiling0.00601353117687%2.7Easyen
Watering Grass0.012691510116377%4.0Mediumen