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1.Rf8+!.>A-1......N/Bxf8.2.Qf7#>B-1....Ke7.2.Qxg5+!>>B1-2...Kxf8.3.Qxd8#>>B2-2....Kd6.3.Ne4+.Kc7.4.Qxd8#>>B3-2....Bf6.3.Nf5+.Kxf8.4.Qg8#>>B4-2....Nf6.3.Nf5+!.Kxf8.4.Qxg7+.Ke8.5.Qf7#Key was how to activate the pinned N? Remove the pin by capturing the R while maintaining the mating attack!There is a variation in line B4 which I will post shortly.Harry
Continuing from my previous post I note that in my B4 line>>B4 line is not correct solution due to 1.Rf8+.Ke7.2.Qxg5+.Nf6.3.Nf5+.Kd7! When mate will be longer and unsure. (Instead of 3....Kxf8.4.Qxg7+.Ke8. 5.Qf7#).The correct B4 line that results in mate in 5 is as follows:->>B4-1.Rf8+.Ke7.2.Qxg5+.Nf6.3.Rf7+!! Preventing the king from escaping! Now>>>B41-3...Ke8.4.Qe5+.Qe7.5.Qxe7#>>>B42-3...Kd6.4.Qf4#!!! The beauty of this last line is that all white pieces are back where they started from ( in this puzzle) while in the meantime black has lost his rook while advancing his N to f6 and his king has reached d6 to be mated!Harry
1.Rf8+ Ke7(1... N(or)Bxf8 Qf7#)2.Qxg5+ options are(a)2... Bf6 3.Nf5+ Kxf8 4.Qg8#(b)2.... Nf6 3.Rf7+ Ke8 (3.... Kd6 4.Qf4#) 4.Qe5+ Qe7 5.Qxe7#(c)2... Kxf8 3.Qxd8#(d)2.... Kd6 3.Ne4+ Kc7 4.Qxd8#
I first notice that this would be mate in 1 if not white had a rook too many.So I instinctively play:1. Rf8 Ke7 (Nxf8/Bxf8? Qf7#)2. Qxg5+ Kxf83. Qxd8#So I guess:2. ... Kd5 (enforced)3. Rxd8without knowing if this is the fastest, but for me it is right know, I have no more time today...
1.Rf8+ Ke7 (1.-Nxf8 or 1.-Bxf8 2.Qf7++)2.Qxg5+ Nf6 (2.-Kxf8 3.Qxd8++) (2.-Kd6 3.Nf5+ Kc7 4.Qxd8++) (2.-Bf6 3.Nf5+ Kxf8 4.Qg8++)3.Rf7+ Ke8 (3.-Kd6 4.Qf4++)4.Qe5+ Qe7 5.Qxe7++
1.Rf8+If Kf8, then Qf7+ mate1. ... Ke7, so no mate in 2 moves2. Qg5+If Kf8, then Qd8+ mate2. .... Bf63. Kf5+ Kf84. Qg8+ mate in 42. .... Kf63. Qg7+ Kd64. Rd8+ Kd75. Rd7+ mate2. ....... Kd63. Nf5+ Kc74. Qd8+ mate
Rf8 jumps out immediately as a way to clear the f7 square for the queen:1. Rf8 Ke7 (Nf8/Bf8 allows Qf7#)And now it was a question of whether to play Qf7 or Qxg5. One leads to mate, the other leads to a decisive material edge (and force mate probably, but I couldn't make it work in 5 moves total, so stopped looking). Continuing:2. Qg5 Nf6 (alternatives follow)3. Rf7 Ke8 (Kd6 4.Qf4#)4. Qe5 Qe75. Qe7#Finally, the alternatives at move 2 for black are all shorter mates:2. .....Bf6 (Kf8 3.Qd8#)3. Nf5! Kf84. Qg8#Or...2. .....Kd63. Nf5 Kc7 (Ke5 4.Qe3#)4. Qd8# is a pretty mate.
1.Rf8+ Ke7 2.Qxg5 Nf6 3.Rf7+...(3...Ke8 4.Qe5+ Qe7 5.Qxe7# ) 3...Kd6 4.Ne4+ Nxe4 5.Qf4#
A) Rf8! Ke7 Qg5 Kd6 Ne4 Kc7 Qd8 check mate.B) Rf8 Ke7 Qg5 Nf6 Qg7 Kd6 Ne4 check mate.C) Rf8 Ke7 Qg5 Bf6 Nf5 Kf8 Qg8 check mate!
1 Rf8+ Bf8 or Nf82 Qf7#1 Rf8+ Kf8 2 Qd8#1 Rf8+ Ke7 2 Qg5+ Kf83 Qd8#1 Rf8+ Ke7 2 Qg5+ Bf63 Nf5+ Kf84 Qg8#1 Rf8+ Ke7 2 Qg5+ Nf63 Rf7+ Kd64 Qf4#1 Rf8+ Ke7 2 Qg5+ Kd63 Ne4+ Kc74 Qd8#1 Rf8+ Ke7 2 Qg5+ Nf63 Rf7+ Ke84 Qe5+ Qe75 Qe7#
Is there a mate in 2?1. Rf8+ Bxf82.Qf7++or1.Rf8+ Nxf82.Qf7++Or am I missing something obvious?
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