(;FF[POLYOMINO]SZ[14]VA[PENTA]EV[ut.polyomino.1211.1.1]PB[eratosthenes]PW[opmp]SO[https://www.littlegolem.net];O[eeedfdde|jjjikjjkij];B[swap];O[ffgfgghghh];B[ihigifhfjg];O[heiejejfkf];B[khlhlimini];O[lgmgmhnhng];B[higighfhfg];O[egehdheifi];B[hkgkfkekgl];O[djdkdlelfl];B[iliminhngn];O[cfcgbgagah];B[gegdgcgbhb];O[dcdbebfbda];B[icidjdkdke];O[lemeneldnd];B[fmemendmdn];O[cmbmamblbn];B[clckbkakal];O[gahaiajaib];B[jbkblbmbnb];O[gmhmhl];B[klkmknln];O[ik];B[lkmknkmlmm];O[cdbdbebc];B[efdfdg];O[cibi];B[ce];O[jljmjn];B[bfaf];O[pass];B[pass])