Problems by Piotr Rudnicki

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
A Flea on a Chessboard0.01287175635620%6.1Harden
Antiarithmetic?0.01258300656019%6.9Harden
Ants0.001047035327947%2.3Easyen
Bachet's Game0.042885624219739%3.8Mediumen
Basic Remains0.0171155464842%3.5Mediumen
Brownie Points I0.0114796253656%2.2Easyen
Brownie Points II0.111336802835%6.7Harden
Closest Sums0.002289431335236%2.6Easyen
Cutting a polygon0.0020532694918%7.5Harden
Ferry Loading IV0.002985287197537%2.5Easyen
Grid Speed0.0424531041312%6.4Harden
How many 0's?0.00127164778948%3.7Mediumen
Knights in Fen0.001454356142933%3.6Mediumen
Magic Bitstrings0.00791707041%5.9Harden
Marbles On A Tree0.002642725101037%3.0Mediumen
Persistent Numbers0.00126135749336%4.2Mediumen
Rectilinear Polygon0.016031566139%6.7Harden
Three Powers0.00813839174145%2.4Easyen
Tri Tiling0.00603062125841%3.2Mediumen
Watering Grass0.022918982189021%4.0Mediumen