[Event "Pat a Mat"] [Site "?"] [Date "2017.??.??"] [Round "?"] [White "Rusz, Árpád"] [Black "(Study 156)"] [Result "1-0"] [SetUp "1"] [FEN "6r1/R1K1ppk1/8/4PP2/8/8/8/8 w - - 0 1"] [PlyCount "27"] [EventDate "2016.??.??"] {[%evp 0,27,123,120,131,128,147,166,183,146,182,222,179,258,279,258,272,279,275,287,287,330,507,517,537,537,557,567,567,567]} 1. Kd7 e6 2. fxe6 (2. f6+ $2 Kg6 3. Ra1 Rb8 4. Ke7 (4. Rg1+ Kf5 $11) 4... Rb7+ $11) 2... fxe6 3. Kxe6+ {White is firing the first battery.} Kg6 4. Ra6 $1 {White is building the second battery.} Rb8 5. Ke7+ Kg7 6. Ra7 $1 {The third battery is on the board.} (6. e6 $2 Rb7+ 7. Kd6 Kf6 $11 {chameleon echo, WCCT-10 (position B)}) 6... Kg6 7. e6 Kg7 {cyclic zugzwang - WTM} 8. Kd6+ {White is firing the third battery.} Kf6 9. Kd7 $1 (9. e7 $2 Kf7 10. Kd7 Re8 11. Kd6 Rb8 {positional draw}) 9... Kg7 $1 10. Ke7 $1 {cyclic zugzwang - BTM} (10. e7 $2 Kf7 11. Ra1 Rb7+ 12. Kd8 Rb8+ 13. Kd7 Rb7+ {perpetual check}) 10... Rb1 11. Ra8 $1 {White destroys the battery.} ({Firing the battery again would be a mistake:} 11. Ke8+ $2 Kf6 12. e7 Rb8+ 13. Kd7 Kf7 $11 {chameleon echo}) 11... Rb7+ 12. Kd6 Kf6 {WCCT-10 (position A)} (12... Rb6+ 13. Kd7 Rb7+ (13... Kf6 14. Rf8+ Ke5 15. e7 Rb7+ 16. Kd8 Kd6 17. Rf6+ $18) 14. Kc6 Re7 15. Kd6 Kf6 16. Rf8+ $18) 13. Rf8+ Kg7 14. e7 1-0