Problems by Piotr Rudnicki

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
A Flea on a Chessboard0.01287193738320%6.3Harden
Antiarithmetic?0.01258317059019%6.9Harden
Ants0.001047642356347%2.4Easyen
Bachet's Game0.042405947224738%4.1Mediumen
Basic Remains0.0171167770442%3.5Mediumen
Brownie Points I0.01147106759556%2.3Easyen
Brownie Points II0.111336992929%6.8Harden
Closest Sums0.0022810093359636%2.6Easyen
Cutting a polygon0.0020532985017%7.5Harden
Ferry Loading IV0.002986035234439%2.1Easyen
Grid Speed0.0424531211412%6.3Harden
How many 0's?0.00127181385847%3.7Mediumen
Knights in Fen0.001454545148333%3.6Mediumen
Magic Bitstrings0.00792018341%5.9Harden
Marbles On A Tree0.002463113116437%2.9Mediumen
Persistent Numbers0.00126146453737%4.3Mediumen
Rectilinear Polygon0.016031826737%7.1Harden
Three Powers0.00814140191146%2.4Easyen
Tri Tiling0.00603716144439%2.9Mediumen
Watering Grass0.022699525201421%4.1Mediumen