(;FF[POLYOMINO]SZ[14]VA[PENTA]EV[ut.polyomino.1172.1.1]PB[eratosthenes]PW[Maurizio De Leo]SO[https://www.littlegolem.net];O[eeedec|jjkjljli];B[ffgfgghfge];O[iihihhhggh];B[egehfhfigi];O[gjfjejeidi];B[dfcfcgchbh];O[cjbjajaiah];B[agafaebead];O[hkikiljljm];B[iejekekfkg];O[khjhjgjfif];B[lhmhmimjni];O[hehdhcichb];B[fbgbgahaia];O[jbkblbkckd];B[lkkkjkklkm];O[mcmdmenend];B[jninhngnfn];O[hmgmfmemen];B[mlnlmmmnnn];O[bgbf];B[bccccbcd];O[ce];B[baaaab];O[dddcdbda];B[hj];O[dkdlclcm];B[gkfkekelfl];O[bnanam];B[ldlc];O[lgmgng];B[mbnbnama];O[pass];B[pass])