Problems by Piotr Rudnicki

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
A Flea on a Chessboard0.01287203940420%6.2Harden
Antiarithmetic?0.01258323660019%6.8Harden
Ants0.001047917369147%2.3Easyen
Bachet's Game0.041976096227937%4.1Mediumen
Basic Remains0.0171171772042%3.4Mediumen
Brownie Points I0.01147113162755%2.2Easyen
Brownie Points II0.1113361132926%6.9Harden
Closest Sums0.0022810203365036%2.5Easyen
Cutting a polygon0.0020533425616%6.7Harden
Ferry Loading IV0.002976193241439%2.1Easyen
Grid Speed0.0424531371511%6.0Harden
How many 0's?0.00127187488647%3.5Mediumen
Knights in Fen0.001454599149232%3.6Mediumen
Magic Bitstrings0.00792068541%5.6Harden
Marbles On A Tree0.002463181118337%3.1Mediumen
Persistent Numbers0.00126153555336%4.2Mediumen
Rectilinear Polygon0.016032017135%6.2Harden
Three Powers0.00814190194046%2.3Easyen
Tri Tiling0.00603786148939%2.7Easyen
Watering Grass0.012699712206421%3.9Mediumen