middlegame problem: white to move

                                         white to move, black to win
                                               -solution tomorrow
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If 1. g4,...b4!, 2. Rc6...Qa1+, 3. Kg2...Bc6, 4. Qc6...Qc3-+.
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update! 6-15-18:  If. 1.g4...b4!, 2. Rc6...Qa1+, 3. Qc1!...Qd4, 4. Rc7...Bd5, 5. NE5+, Kg8, 6. g5...hg5, 7. fg5...Ne8 (7....Qe5, 8. gf6!+-), 8. Rd7...Qe5, 9. Bd5+...Kh8, 10. gf6...e3!, 11. Bd4+...Qd4
 --this could be equal.
update! 6-22-18:  If. 1.g4...b4!, 2. Rc6...Qa1+, 3. Qc1...Qc1, 4. Rc1...Bd5 and black wins endgame.
If. 1.g4...b4!, 2. Qc4...Qa1+, 3. Kg2...Qc3, 4. Qe6...Re8, 5. Qf5...Ne7, 6. Qe5....Qe5, 7. fe5...Ng4-+.
-r, mt. shasta, california.