Problems by Piotr Rudnicki

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
A Flea on a Chessboard0.01287203740220%6.2Harden
Antiarithmetic?0.01258323559919%6.8Harden
Ants0.001047911368947%2.3Easyen
Bachet's Game0.041976092227937%4.1Mediumen
Basic Remains0.0171171772042%3.4Mediumen
Brownie Points I0.01147112362355%2.2Easyen
Brownie Points II0.1113361132926%6.9Harden
Closest Sums0.0022810194364636%2.4Easyen
Cutting a polygon0.0020533365516%6.6Harden
Ferry Loading IV0.002976184240939%2.1Easyen
Grid Speed0.0424531331411%6.3Harden
How many 0's?0.00127187388547%3.5Mediumen
Knights in Fen0.001454596149132%3.6Mediumen
Magic Bitstrings0.00792068541%5.4Mediumen
Marbles On A Tree0.002463180118237%3.1Mediumen
Persistent Numbers0.00126153555336%4.1Mediumen
Rectilinear Polygon0.016032017135%5.8Harden
Three Powers0.00814189193946%2.3Easyen
Tri Tiling0.00603784148739%2.7Easyen
Watering Grass0.012699679205821%3.9Mediumen