ZP...... | PP...... | PP......
ZX...... | ZY...... | ZV......
XXXWWFFU | YYYYWWFF | ZVNNNWFU
TXIIIIIU | TTTLLLLU | TVVVNNLU 
ZP...... | PP...... | PP......
ZX...... | ZY...... | ZL......
XXXWWFFU | YYYYWWFF | ZLLLLWFU
TXNNVVVU | TTTNNNVU | TIIIIIVU 
UU...... | UV...... | UU......
WX...... | WV...... | FF......
XXXIIIII | WVVVYPPP | WFFYYYYL
ZXTTTNNN | ZZZTNNPP | WFZTLLLL 
UU...... | UV...... | UU......
WX...... | WV...... | FF......
XXXIIIII | WVVVYNNN | WFFYYYYL
ZXTTTPPP | ZZZTNNPP | WFZTLLLL 
UU...... | UV...... | UU......
WX...... | WV...... | FF......
XXXIIIII | WVVVLLLL | WFFYYYYL
ZXTTTNNN | ZZZTNNPP | WFZTYPPP 
UU...... | UV...... | UU......
WX...... | WV...... | FF......
XXXIIIII | WVVVLLLL | WFFYYYYL
ZXTTTPPP | ZZZTNNPP | WFZTYNNN 
UU...... | UT...... | UU......
VX...... | VT...... | VZ......
XXXFNNNP | TTTFFFPP | VZZZFYPP
WXLLLLNN | WWLIIIII | VWWZYYYY 
UU...... | UT...... | UU......
VX...... | VT...... | VW......
XXXIIIII | TTTLLLLP | VWWNNNLP
FXYYYYZP | FFFYZZZP | VFWWZNNP 
UV...... | UV...... | UV......
UX...... | FT...... | UV......
XXXIIIII | FTTTLLLL | FVNNLPPP
FXWYYYYZ | FTWWYZZZ | NNNWWZPP 
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       http://www.asahi-net.or.jp/~rh5k-isn/Puzzle/Pentominoes/L3.html