My Castle is fairly crushable, but if you crush the wrong thing first, your efforts will be for naught.
I have not tried using bombs against it yet i'm guessing that is the hint to success .ie try NOT to use bombs.
3~w_i:491.65,356.65|w_i:573.4,354.9|ws_s:555,386.65|ws_s:553.4,326.7|w_s:471.65,358.35|p_c:489.95,138.3|p_c:565,139.85|fs_i:521.65,413.3|fs_i:523.35,396.65|fs_i:521.65,376.65|fs_i:521.65,366.65|fs_i:521.65,385|fs_i:523.35,403.35|fs_i:523.35,358.25|fs_i:525,348.35|fs_i:523.35,340|fs_i:523.35,331.65|fs_i:523.35,320|fs_i:523.35,310|fs_i:523.35,300|c_s:521.65,253.35|ws_i:570,203.3|ws_i:473.3,268.25|ws_i:474.95,205.05|ws_i:571.7,265|f_i:475,170|f_i:526.65,111.65|f_i:571.7,170|fs_i:603.35,158.3|fs_i:521.7,103.35|fs_i:440,159.95|fs_i:521.65,89.95|p_t:521.65,56.65|ws_i:728.4,386.6|w_i:663.35,358.3|fs_i:696.7,408.35|fs_i:698.35,396.65|fs_i:698.35,383.35|fs_i:700.05,369.9|fs_i:650,290|fs_i:626.7,278.35|fs_i:603.35,290|w_i:590,356.65|p_t:628.35,245|c_n:625,381.65|c_p:696.7,323.35|w_i:950.05,353.15|w_i:1028.35,353.25|w_i:990,355|w_s:970,355|w_s:1008.35,353.35|w_s:1045,355|w_s:928.35,350.05|fl_i:880.05,273.25|fl_i:981.7,284.9|fl_i:1081.6,273.35|fl_i:948.35,248.4|fl_i:983.35,261.65|fl_i:983.35,234.95|f_i:833.35,261.65|f_i:1131.65,261.65|f_i:1093.35,248.25|f_i:1005.05,220|fs_i:908.35,223.35|fs_i:908.35,211.65|fs_i:1106.65,238.3|fs_i:1106.65,221.65|fs_i:1106.7,201.65|fl_i:1010.05,190|w_i:955,121.65|w_i:1068.35,121.65|w_s:935,121.65|w_s:973.35,121.65|w_s:1050.05,121.65|w_s:1088.35,121.65|c_n:1006.65,148.3|c_s:891.7,376.7|fl_i:1011.65,53.35|fs_i:958.35,41.65|fs_i:1068.35,40|ws_i:1101.7,20|ws_i:921.65,19.95|fs_i:1085,-15|fs_i:936.7,-16.7|ws_i:923.35,-55|ws_i:1101.65,-51.7|fl_i:1013.35,-91.7|c_q:1013.35,6.6|ws_i:948.35,-140.05|ws_i:1079.9,-134.95|fs_i:1091.65,-101.7|fs_i:935.05,-103.3|fs_i:1093.35,-170|fs_i:936.7,-176.7|ws_i:921.7,-140|ws_i:1105.05,-135|f_i:960.05,-185|f_i:1075,-180|f_i:1021.65,-195|ws_i:1016.7,-123.35|fs_i:1018.35,-158.35|fs_i:1018.35,-166.7|c_k:1021.7,-236.7|ws_i:925,-220|ws_i:925,-280|ws_i:1105,-218.35|ws_i:1108.35,-280|fl_i:1016.7,-318.35|p_t:1018.35,-350|p_c:925,-353.35|p_c:1105,-355|p_s:1085,-356.7|p_s:943.35,-355|