Problems by Lech Duraj

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Captain Obvious and the Rabbit-Man0.412511414129%6.1Harden
Chemist's vows0.00433191053628%3.0Mediumen
Crane0.0258530112441%5.6Harden
Draughts0.0156471927939%3.4Mediumen
Escape0.3310015318215%8.5Harden
Jewel Heist0.7214892696825%5.8Harden
Rubik's Rectangle0.2118581202118%8.5Harden
The Imp0.093395728715%8.2Harden
Wheels0.0155668826438%3.4Mediumen
Word Equations0.05100057210819%7.7Harden