| Oct-30-18 | | Cheapo by the Dozen: Yes, White is in a mating net. :)
About the same level of difficulty as this Monday's puzzle, actually. |
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| Oct-30-18 | | drollere: 47. .. Rf1+, 48. Kxg4 Rf4+, 49. Kg5 Rh5#
those are two lucky little pawns. |
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| Oct-30-18 | | landshark: Nice mating endgame mating net. Far from being saved by exchanging queens on move 39 - that trade almost underscored the passivity of White's pieces, especially the offside N on a4 |
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Oct-30-18
 | | al wazir: White apparently didn't play 44. Bxg4 because of 44...Rg2+ 45. Kf1 Rh1#. He was willing to play 44. Rg3 even though he must have seen that he would be an exchange down after 44...Nxe2+ 45. Rxe2 Rxe2 46. Rxg4, the continuation he probably expected. (After 44....Rxe2 45. Rxe2 Nxe2+ 46. Kg2 Nxg3 47. Kxg3 he would have been a ♖ down.) Instead of which, he fell into a mating combination. Very strange. |
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| Oct-30-18 | | saturn2: I saw the main line
47...Rf1+ 48. Rf2 (Kxg4 runs into matr) Nxf2
winning a rook. |
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| Oct-30-18 | | agb2002: Black is one pawn ahead.
White threatens Nxb7.
The unfortunate position of the white rooks gives Black the possibility of delivering mate in four: 47... Rf1+ 48.Rf2 Rxf2+ 49.Kxg4 Rf4+ 50.Kg5 Rh5#. |
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Oct-30-18
 | | An Englishman: Good Evening: This eventually transposes into a Reti with Capablanca's defensive idea of ...c6, ...Bg4, and ...e6. Quite a tribute to the man that after nearly a century it remains a solid and sound system. |
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| Oct-30-18 | | Once: <saturn2: I saw the main line
47...Rf1+ 48. Rf2 (Kxg4 runs into matr) Nxf2
winning a rook.>
48... Nxf2 wins, but there is a quicker way. 48... Rfxf2+ forces 49. Kxg4+ and we're back into the same mating pattern. |
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| Oct-30-18 | | ndg2: Absolutely necessary was something like 42.Nc3 to give the bishop on e2 additional protection. White thought he could get away with losing an exchange but didn't see the mate combination starting with 45..Rd1+ |
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| Oct-30-18 | | SpamIAm: 16.Nh4 was questionable, as after 16...dxc4 17.dxc4 e5 white has a hole at d4 and his bishop is blocked by his own e-pawn. Better was 16.e5 Ne8 17.d4. Later on he was apparently impressed by the sequence 24.g4 Bg6 25.Nxg7 but after 25...Kxg7 26.f5 h6 27.fxg6 fxg6 material is still even, he has an additional hole at f4, and his bishop is even worse. His attempt to open lines with 34.g5 ends up rebounding to black's advantage. Nimzovich would've scowled (although he would've praised black's play). |
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| Oct-30-18 | | RandomVisitor: White missed 28.Rxf6! Kxf6 29.Qf2+ Kg7 30.Qxc5 |
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| Oct-30-18 | | malt: 47...Rf1+ 48.Rf2
(48.K:g4 Rf4+ 49.Kg5 Rh5# )
48...Rf:f2+ 49.K:g4 Rf4+ 50.Kg5 Rh5# |
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| Oct-30-18 | | cocker: The mate started two moves earlier, on move 45. |
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| Oct-30-18 | | SpamIAm: Wow, you're right, <RandomVisitor>. Black's 26...h6? is actually a blunder. 26...Qe7 would've retained the advantage. |
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| Oct-30-18 | | zb2cr: 47. ... Rf1+ forces White to climb the stairs to his doom. The main line is 48. Kxg4, Rf4+; 49. Kg5, Rh5#. White can last one more move by throwing away a Rook with 48. Rf2, Rxf2+; 49. Kxg4 repeating the same sequence but one move later. |
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| Oct-30-18 | | patzer2: <SpamIAm: Wow, you're right, <RandomVisitor>. Black's 26...h6? is actually a blunder. 26...Qe7 would've retained the advantage.> Stockfish 9 indicates you're right about 26...Qe7 27. g5! ⩱ (-0.41 @ 23 ply) offering Black a slight advantage, but even stronger is 26...Rd4 ∓ (-1.34 @ 25 ply) or 26...Rd6 ∓ (-1.38 @ 29 ply). |
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| Oct-30-18 | | patzer2: <RandomVisitor: White missed 28.Rxf6! Kxf6 29.Qf2+ Kg7 30.Qxc5> Yes indeed! After the Black mistake 26...h6? 27. fxg6 fxg6, the Queen fork (double attack) combination 28. Rxf6! Kxf6 Qf2+ ± (+0.75 @ 28 ply, Stockfish 9) would have given the first player a clear advantage. Instead, 28. Rf3? Ne2 ∓ (-0.92 @ 21 ply, Stockfish 9) allowed Black a strong advantage. |
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| Oct-30-18 | | messachess: Easy peazy. |
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| Oct-30-18 | | whiteshark: You got it. |
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Oct-30-18
 | | ajk68: <the Queen fork (double attack) combination 28. Rxf6! Kxf6 Qf2+ ± (+0.75 @ 28 ply, Stockfish 9) would have given the first player a clear advantage.> It doesn't look like much of an advantage. The activity of white's pieces would be much more limited. |
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| Oct-31-18 | | patzer2: <ajk68> After 28. Rf3? White's pieces also have limited activity in the face of a clear Black advantage, but after 28. Rxf6! Kxf6 Qf2+ ± White has two pieces for the Rook and good prospects for mobilizing the Knight. |
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Kibitzing
sac: 47...Rf1+