Problems by Piotr Rudnicki

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
A Flea on a Chessboard0.01287199938619%6.4Harden
Antiarithmetic?0.01258318259319%6.8Harden
Ants0.001047677357747%2.4Easyen
Bachet's Game0.042405948224738%4.1Mediumen
Basic Remains0.0171169170842%3.5Mediumen
Brownie Points I0.01147107859855%2.3Easyen
Brownie Points II0.1113361042928%6.7Harden
Closest Sums0.0022810106360236%2.6Easyen
Cutting a polygon0.0020533035017%7.5Harden
Ferry Loading IV0.002986041234539%2.1Easyen
Grid Speed0.0424531261411%6.3Harden
How many 0's?0.00127185087847%3.5Mediumen
Knights in Fen0.001454550148333%3.6Mediumen
Magic Bitstrings0.00792018341%5.8Harden
Marbles On A Tree0.002463119116437%2.9Mediumen
Persistent Numbers0.00126148654236%4.2Mediumen
Rectilinear Polygon0.016031876736%7.1Harden
Three Powers0.00814150191546%2.4Easyen
Tri Tiling0.00603728144939%2.9Mediumen
Watering Grass0.012699557202821%4.1Mediumen