012 - No Siempre la Obvia es la Mejor

 Continuamos mejorando nuestro nivel con los ejercicios del Manual de las Combinaciones, donde tenemos las siguientes posiciones a resolver:

[Event "Juegan Blancas +-"] [Site ""] [Date "????.??.??"] [Round "?"] [White "?"] [Black "?"] [Result "*"] [Annotator ""] [ECO "?"] [FEN "1r4k1/4nppp/5q2/2Np1b2/1r6/RP4P1/3QPPBP/2R3K1 w - - 0 1"] [Opening "?"] [SetUp "1"] [Source "IB PGN Viewer"] [SourceDate "2023.01.04"] [SourceTitle "kD_oTAUKTOePc4Pv-X_ez1kJhH-WaIzwxzbuOIsIf77aTGBg7laDsJkIP4HF1Xqpe6SZ5lsyHS9PGCPOocJFqw"] [UTCDate "2022.09.18"] [UTCTime "03:38:10"] [Variant "Standard"] *

[Event "Juegan Negras -+"] [Site ""] [Date "????.??.??"] [Round "?"] [White "?"] [Black "?"] [Result "*"] [Annotator ""] [ECO "?"] [FEN "2k2r2/2p5/1pq5/p1p1n3/P1P2n1B/1R4Pp/2QR4/6K1 b - - 0 1"] [Opening "?"] [SetUp "1"] [Source "IB PGN Viewer"] [SourceDate "2023.01.04"] [SourceTitle "nu1pjWrT6VtjKWkYiUhh6ehAUg5VtE-Qd0u06JaPZzm0SvqP9g7a2he-Mnclx3_J3YtFTq1dTVdil0i1_EzmaA"] [UTCDate "2022.09.18"] [UTCTime "03:39:52"] [Variant "Standard"] *

La Solución es: