Some more tactics on rules and themes :)

 [Event "Friendly Game, 2m"]  [Site "Café"]  [Date "2012.09.12"]  [Round "?"]  [White "Guest217730"]  [Black "Dembo, V."]  [Result "0-1"]  [ECO "B22"]  [Annotator "DemboChess"]  [SetUp "1"]  [FEN "r1B2nk1/4b2p/p5p1/3p4/q2P1N2/Pp3P2/1PnQ4/1K1R2NR b - - 0 25"]  [PlyCount "7"]  [EventDate "2012.09.12"]  [TimeControl "120"]   25... Bxa3 {[%emt 0:00:02]} 26. Nxg6 {[%emt 0:00:12]} Bb4 {[%emt 0:00:14]} 27.  Ne7+ {[%emt 0:00:09]} Bxe7 {[%emt 0:00:05]} 28. Be6+ {[%emt 0:00:07]} Kh8 {  [%emt 0:00:07] ' Zeit  (Lag: Av=0.49s, max=4.9s) .} 0-1 

 [Event "Friendly Game, 2m"]  [Site "Café"]  [Date "2012.08.25"]  [Round "?"]  [White "Dembo, V."]  [Black "Guest2310616"]  [Result "1-0"]  [ECO "B40"]  [Annotator "Dembo,Yelena"]  [SetUp "1"]  [FEN "2r2rk1/5pp1/p1bbp2p/1p6/2pP3q/2P2PN1/PP3QPP/1B1RR1K1 w - - 0 25"]  [PlyCount "7"]  [EventDate "2012.08.25"]  [TimeControl "120"]   25. Qc2 {[%emt 0:00:02]} g6 {[%emt 0:00:03]} 26. Rxe6 {[%emt 0:00:09]} Bxg3 {  [%emt 0:00:03]} 27. Rxg6+ {[%emt 0:00:01]} Kh8 {[%emt 0:00:08]} 28. Rg8+ {  [%emt 0:00:03] Guest2310616 geeft op  (Lag: Av=0.39s, max=1.0s)} 1-0 

 [Event "Friendly Game, 2m"]  [Site "Café"]  [Date "2012.08.16"]  [Round "?"]  [White "Dembo, V."]  [Black "Guest1610101"]  [Result "1-0"]  [ECO "C00"]  [Annotator "Dembo,Yelena"]  [SetUp "1"]  [FEN "1k1r3r/Rb2bpp1/1p2p3/4Pn1p/1n1pNP2/3P1NP1/2qBQ1BP/R5K1 w - - 0 18"]  [PlyCount "19"]  [EventDate "2012.11.07"]  [TimeControl "120"]   18. Neg5 {[%emt 0:00:10]} Bxg5 {[%emt 0:00:09]} 19. Rxb7+ {[%emt 0:00:01]} Kxb7  {[%emt 0:00:10]} 20. Ne1+ {[%emt 0:00:03]} Kc7 {[%emt 0:00:02]} 21. Nxc2 {  [%emt 0:00:01]} Nxc2 {[%emt 0:00:01]} 22. Rc1 {[%emt 0:00:04]} Be7 {[%emt 0:00:  01]} 23. Rxc2+ {[%emt 0:00:02]} Bc5 {[%emt 0:00:00]} 24. Qe4 {[%emt 0:00:07]}  Kd7 {[%emt 0:00:02]} 25. Qc6+ {[%emt 0:00:08]} Ke7 {[%emt 0:00:01]} 26. Rxc5 {  [%emt 0:00:02]} bxc5 {[%emt 0:00:01]} 27. Qxc5+ {[%emt 0:00:02] Guest1610101  gibt auf  (Lag: Av=0.20s, max=0.3s)} 1-0 

 [Event "Friendly Game, 2m"]  [Site "Café"]  [Date "2012.11.07"]  [Round "?"]  [White "Dembo, V."]  [Black "Guest1752751"]  [Result "1-0"]  [ECO "C00"]  [Annotator "Dembo,Yelena"]  [SetUp "1"]  [FEN "r1b3k1/pp4pp/1q2p3/4P3/2pPp3/b1P1B1P1/PP2Q2P/5RK1 w - - 0 20"]  [PlyCount "7"]  [EventDate "2012.11.07"]  [TimeControl "120"]   20. Qf2 {[%emt 0:00:10]} h6 {[%emt 0:00:18]} 21. Qf7+ {[%emt 0:00:05]} Kh7 {  [%emt 0:00:01]} 22. Rf6 {[%emt 0:00:10]} Qxb2 {[%emt 0:00:07]} 23. Rxh6# {  [%emt 0:00:02] (Lag: Av=1.03s, max=9.9s)} 1-0