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1.Qf6+ Kg8 2.Nd8!Or 1...Kh6 2.Nd4!
1. Qf6+ Kg8 (alternative below)2. Nd8!!The threat is Rxc3/Qxc3? Qxf7+ Kh8 Qxf8#.2. ... Rxd8 (what else?)3. Qxd8 h5 (only against Qxf8#)4. Qxf8+ Kh65. Nf6#1. Qf6+ Kh62. g4!!The threat is g5+ Kh5 Qf3+ Kxh4 Qf4+ Kh5 Rh3#. There should only be delaying sacks. Be7/Bg7 prevents nothing.2. ... Qxc3 (what else?)3. Qxc3 a2 (otherwise the threat was the same)4. g5+ Kh55. Qf3+ Kxh46. Qg3+! Kh57. Kh3! Ra3 (what else?)8. Qxa3 Nb3/Nc29. Qxa21 - 0There could be other variations, but generally the two ideas Nd8 or g4 after Qf6+ look "waterproof" to me...
In my first post it seems I had a black rook on a8. It isn't there.1. Qf6+ Kh6 (Kg8? Nd8! goes down clearly faster)2. g4! Qe2! (preventing Qf3 and now black has a threat with the bishop as well as Q(x)g4 threat)3. g5+ Kh54. Qh8!Here I don't think black finds a way out of it. Qg4+ Rg3 should not help at all. E.g:4. ... h65. Nxf8! Rxf86. Qxf8! Kxh4 (otherwise Rg3)7. Qxh6+ Kg48. Rg3#Interesting.
1.Qf6+ Kg8 2.Nd8 Rxd8 3.Qxd8 h6 4.Qxf8+ Kh7 5.Nf6# almost everything is forced.
This is really really difficult. Nakamura might be having a problem solving this puzzling puzzling puzzle.
1.Qf6+.A-1....Kh6?.2.g4.Qxc3.3.Qxc3.and white wins as he has a Q vs R+B plus a mating attack; moreover the black knight is quite lost which will leave white with Q vs R.B-1....Kg8..2.Nxf8!• If B1-2...Kxf8.3.Qh8#• If B2-2...Rxf8.3.Ne7#• If B3-2...Qxc3.3.Qxc3. and white wins as in A1; white has Q vs R+B with a loss of knight on the way.• If B4-2...Nb3/c2.3.Ne6!!.o If B41-3..fxe6.4.Ne7#o If B42-3..Qxc3.4.Ne7#o If B43-3..any other move.4.Qg7#• If B5-2...Re8..3.Ne6!!o If B51-3..fxe6.4.dxe6. If B511-4...Rf8?.4.Ne7# If B512-4...Qxc3.5.white can win by Qc3 as in A1 or even by 5.Qf7+.Kh8.6.Qxe8+.Kg7.7.Qf7+.Kh6.8.e7 and making a new queen while black king is still in a mating net! amusing alternative here is 5.e7!.Qg7.(Rxe7 allows 6.Qf8#!) 6.Qxe8+.Qg8.7.Qxg8.Kxg8.8.e8=Q+ If B513-4...Rxe6.5.Qxe6+ and black wins easily with Rf3 etc.o If B52-3..Rxe6.4.dxe6. If B521-4...Qxc3. 5.Ne7+.Kf8. 6.Qxf7# If B522-4...Bxc6.5.Qxf7+.Kh8. 6.Qf8#o If B53-3...Qxc3.4.Qxc3 and white wins easily as in A1 etco If B54-3...any other move..4.Qg7#• If B6-2...Bxc6.3.Ne6!!o If B61-3...fxe6.4.Qxe6+.Kg7. 5.Rf3!. If B5611-5...Rf8.6.Qe7+.Kh3.7.Qxf8+.Kh5 and white will mate black king (if 7...Qg7.8.Qf4+.g5.9.Qxd6+.Kh5.10.g4+!. and white mates) If B5612-5...Rxc6.6.Qf7+.Kh3. 7.Qf8+.Kh5 and white will mate black kingo If B62-3...Qxc3.5.Qxc3.fxe6. 6.dxc6 and white wins easily as in A1 above (now even simpler)Harry
what's the rating of this puzzle?
what's the rating of this puzzle? does any one know?
Qf6+, Kg8 2)Nd8 Bg7 3)Qf7+ Kh8 4)QE8+ & WINS1)Qf6+ kh6 2)Nce5 threatening Nf7+ or Ng4+ , de5 3)Ne5 qe2 4)Nf7+ kh5 5)Qg5#
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