A tactic from my Round 2 game in the Swiss, 7-round FIDE rated Japan League tournament in Tokyo: it is Black to play and win.
Sakai. E (1985) - Ikeda. J (2339)
Japan League (2), 10.08.13
23...Rxe3 24.Rxe3 Rd5! (In the game I played 24...Rb4 quite quickly but immediately realised 24...Rd5 was winning on the spot - 24...Rb4 was a much longer win, at 48 moves.) 0-1