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May-16-21
 | | beatgiant: <al wazir>
It's a logical idea for White to try to bring the queen into the defense, but after 37. Qc8 Rh4 38. Qf5, Black can allow the queen trade with <38...Rxh2> because 39. Qxf3 exf3 and 40...Rh1# is unstoppable.I wonder if White can save the game with <34. c5> with an idea similar to yours. It seems like 34...Rg5 35. Qa6 dxc5 is forced, and then White can reply 36. Qe6 to bring the queen into play. |
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| May-16-21 | | SugarDom: Rg5 was obvious. Not very satisfying puzzle. |
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| May-16-21 | | Walter Glattke: 32.-Rg6+ 33.Kf1
A) 33.-Rh6 34.Re2 Rxh2 35.Ke1 Qh1+(Rh1+) 36.Kd2 h5 rather equal play
B) 33.-Rf8 34.Qa3 h6 35.Qb2 Rf4 36.Rc1 Rh4 37.Ke1 Rg1+ 38. Nf1 Rxh2 39.Qe2 R2h1 40.Qxf3 Rxf1+ 41.Kd2 exf3 42.Rxf1 Rxf1 43.Kf3 rather equal play |
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May-16-21
 | | Dionysius1: Nice chipping away at the king side. With the weekend puzzles I usually don't understand how the moves hang together in a plan, but on this one it does seem clearer. |
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| May-16-21 | | Brenin: Black needs the quiet but forceful move Rf8 to reinforce the attack, but 32 ... Rg6+ must come first, otherwise White repairs the crumbling wall with 33 Nf1 and 34 Ng3, blocking the g-file and attacking the P on e4. Clearly the h-pawn will need to be advanced at some stage, to free Black from the back rank mate threat, but again, timing is everything. |
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May-16-21
 | | Messiah: Unusually simple for a Sunday. |
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May-16-21
 | | agb2002: Black is one knight down.
Black can try a direct attack 32... Rg6+ (32... Qh3 33.Nf1 protects h2 and can block the g-file with Ng3) 33.Kf1 Qh1+ 34.Ke2 Rg1 (trying to decoy/eliminate the defenders of the first two ranks): A) 35.Rxg1 Qf3+ 36.Kd2 (36.Ke(f)1 Rb1+ and mate next) 36... Qxf2+ 37.Kc1 Qxe3+ 38.Kc2 Qf2+ 39.Kc1 Qxg1+ followed by Qxh2+ wins two pawns at least. B) 35.Raa1 Rb2+ 36.Nc2 Rxc2+ 37.Ke3 Qf3+ 38.Kd4 Qd3# (or 38... Rd2#). C) 35.Nc2 Qf3+ 36.Kd2 Qd3+ 37.Kc1 Rxe1+ 38.Nxe1 Rb1#. D) 35.Ng2 Qxg2 36.Rxg1 (36.Raa1 Qf3+ 37.Kd2 Qxf2+ and mate next) 36... Qf3+ as in A. |
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May-16-21
| | agb2002: I missed the obvious defense 38.Rd2 in my line A and was so focused on the rook on g1 that I missed the mate in two with 38... Qd3+ as in C. |
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| May-16-21 | | Walter Glattke: 33.-Qh1+ 34.Ke2 Rg1 breaks white by Qxf2 in all variations, ply 35.Rf1/Ng4/Qa8/Raa1/all following Qxf2,
35.Qf4 Rxe1+ 36.Kd2 (Rxe3!? 37.Kxe3 unclear) Ra1-+ or 35.-Qf3+ 36.Qxf3 exf3+ 37.Kxf3 Rxe1 -+ |
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| May-16-21 | | mel gibson: The first move was obvious.
Stockfish 13 agrees but after
many hours of processing it couldn't find a checkmate solution - but close to it.
32... Rg6+
(32. .. Rg6+ (♖f6-g6+ ♔g1-f1 ♕f3-h1+ ♔f1-e2 ♖g6-g1 ♘e3-g2 ♕h1xg2
♕a5-f5 ♖g1xe1+ ♔e2xe1 e4-e3 ♔e1-e2 ♖b8-e8 ♕f5-f7 ♕g2-g4+ ♔e2-e1 ♖e8-b8
♖a2-a1 ♕g4-g1+ ♔e1-e2 ♕g1xa1 ♔e2xe3 ♕a1xc3+ ♔e3-f4 ♕c3-e5+ ♔f4-g4 h7-h5+
♕f7xh5+ ♕e5xh5+ ♔g4xh5 ♖b8-f8 f2-f3 ♖f8xf3 ♔h5-g4 ♖f3-f2 ♔g4-g3 ♖f2-c2
♔g3-f3 ♖c2xc4 ♔f3-g2 ♖c4-b4 h2-h3 g7-g5 ♔g2-h2 ♖b4-c4 ♔h2-g1 d6-d5 ♔g1-h2
♖c4-c3 ♔h2-g2 ♖c3-e3 ♔g2-h2 ♖e3-f3 ♔h2-g2 ♖f3-f4 ♔g2-g3 d5-d4 h3-h4 ♖f4xh4
♔g3-f2 ♖h4-h3 ♔f2-f1) +64.77/53 over 2 hours processing) score for Black +64.77 depth 53 |
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| May-16-21 | | 5hrsolver: There’s a whole lot to analyze from this sample line but the chessgames Engine says black wins here. 32...Rg6+ 33. Kf1 Qh1+ 34. Ke2 Rg1 35. Rxg1 Qf3+ 36. Ke1 Rb1+ 37. Kd2 Qxf2# |
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May-16-21
 | | chrisowen: Roofback veins Rg6+ gobble aorta bandjob veins afford point i roofback veins pings muffler barks oaksleg quotient teach on wu cud jovial z its viper muffy finds vines chintz its labs ivory bottles it wagers veins Re1 fresh a veins cliff muffler Qa7 go adamnation nadda veins latch eg aggregate veins again totadd aorta jaffa flick definite veins aquaknight Rg6+ dug? |
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May-16-21
| | chrisowen: Rg6 Graffiti tag no? |
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May-16-21
| | chrisowen: Mixing aa bore no? |
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May-16-21
 | | drollere: this one was well above my pay grade. i got the initial Rg6+, but found nothing other than Qh1+ and Qxh2. i also noticed the threat of Qd8# on the back rank, which black resolved with the timely Rf8 and h6. |
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May-16-21
| | drollere: <32...Rg6+ 33. Kf1 Qh1+ 34. Ke2 Rg1> i looked at Rg1 too. but after 35. Ra1 Qf3+, 36. Kd2 Qxf2+ 37. Rf2 then what? |
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May-16-21
 | | steinitzfan: According to Stockfish this is all a refutation of a horrendous blunder White made on the previous move. With 31 Re1, the evaluation goes from appr. 0 to -10. Would anybody but a computer know it though? |
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May-16-21
| | chrisowen: Rg6 it stop aether no? |
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| May-16-21 | | billbarstool: I thought the puzzle was amazing positional play. I liked it |
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May-16-21
 | | Jimfromprovidence: Looks like the text 33...Rf8 was not the optimal move, even though it's not easy to see why not. White has 34.Qa7 =0.00 (44 ply), below.
click for larger view Plus there are also 2) =0.00 (43 ply) 34.Qb6 and 3) =0.00 (43 ply) 34.Rb2 Perhaps both 34 Qa7 and 34 Qb6 allow the queen to control e3 and f2 (if the knight moves) so ...Qh1+ no longer works? I am not sure about 34 Rb2. |
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| May-16-21 | | 5hrsolver: <drollere:
i looked at Rg1 too. but after 35. Ra1 Qf3+, 36. Kd2 Qxf2+ 37. Rf2 then what?>35. Raa1 would allow Rb2+
32...Rg6+ 33. Kf1 Qh1+ 34. Ke2 Rg1 35. Raa1 Rb2+ 36. Nc2 Rxc2+ 37. Ke3 Qf3+ 38. Kd4 Qd3# |
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| May-16-21 | | KevinDenelsbeck: Giving myself the W here since I found the engine's play, if not the actual gameplay. |
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| May-16-21 | | RandomVisitor: After 32...Rg6+ 33.Kf1 <Qh1+> 34.Ke2 <Rg1> (diagram) it is mate in 27...
click for larger view Stockfish_21051510_x64_modern:
<90/55 6:04:28 -M27 35.Ng2 Qxg2 36.Qf5 Rxe1+ 37.Kxe1 e3> 38.Ke2 Re8 39.Qf7 Qg4+ 40.Ke1 Rb8 41.f3 Qg1+ 42.Ke2 Qf2+ 43.Kd3 Qxa2 44.Kxe3 Qxh2 45.Kd3 Qe5 46.f4 Qe1 47.Kd4 Rc8 48.Kd5 Qe3 49.Qd7 Qd3+ 50.Ke6 Qe4+ 51.Kxd6 Qxf4+ 52.Ke6 Qxc4+ 53.Qd5 Re8+ 54.Kd7 Qxd5+ 55.Kxe8 Qd6 56.c4 Kg8 57.c5 Qxc5 58.Kd8 Kf8 59.Kd7 Kf7 60.Kd8 Ke6 61.Ke8 Qe7+ |
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| May-17-21 | | mel gibson: <Stockfish_21051510_x64_modern:
<90/55 6:04:28 -M27> wow - so it took 6 hours to find the checkmate solution! |
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| May-17-21 | | RandomVisitor: <mel gibson>After about 5 hours it saw a mate in 28, after 6 hours it found one in 27. I just set up one of my many machines and go off and do other things and sometimes I come back to find interesting results... |
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Kibitzing
sac: 28...Qf4