A game that I liked (ChessBase 13)
[Event "Problem"] [Site "?"] [Date "1976.??.??"] [Round "?"] [White "Rusinek, J."] [Black "(Perpetual Plachutta 1)"] [Result "1/2-1/2"] [Annotator "1st Prize - version -"] [SetUp "1"] [FEN "N3k3/P2p3N/3P1p1K/2p1ppP1/3p3b/2P4P/p3n2P/1n5b w - - 0 1"] [PlyCount "21"] [EventDate "1976.??.??"] 1. Nc7+ Kd8 2. g6 a1=Q 3. g7 Qa2 4. c4 $1 Qxc4 5. Nd5 $1 {Plachutta} Qc1+ (5... Qxd5 6. a8=Q+ Qxa8 7. g8=Q#) (5... Bxd5 6. g8=Q+ Bxg8 7. a8=Q#) 6. Nf4 $1 Qg1 ( 6... Qxf4+ 7. Kg6 $18) 7. Ng2 $1 {Nowotny} Qc1+ (7... Qxg2 8. a8=Q+ Qxa8 9. g8=Q#) (7... Bxg2 8. g8=Q#) 8. Nf4 $1 Qc4 9. Nd5 $1 {perpetual Plachutta} Qc1+ 10. Nf4 Qg1 11. Ng2 {perpetual Nowotny} 1/2-1/2