Gennadi Sosonko vs Knut Helmers (1980)

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Gennadi Sosonko vs Knut Helmers
Reykjavik+ (1980), Reykjavik ISL, rd 4, Feb-27
Queen's Indian Defense: Fianchetto. Nimzowitsch Variation (E15) · 1-0

ANALYSIS [x]

FEN COPIED

Annotations by Stockfish (Computer). [35435 more games annotated by Stockfish]

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Oct-01-24		TheaN: Early to this Tuesday. I'm assumed this score is wrong, and so is the puzzle as a result, as 22....Re2 makes no sense at all. White goes up a rook, and the combination after is just a finisher as White simplifies. I'm correct. On 365 it goes <22.Re2 Re5 23.Rfe1 Ree8 24.Bc2 Rxe2 25.Re2 Re8> leaving us without the rook on f1: click for larger view Now I understand <26.Qxf6!> which I assumed would be the answer anyway considering <26....gxf6 (Rxe2 27.Qxg7#) 27.Rxe8+ Kh7> and here a couple of moves win, but went with <28.Re7 +-> pretty much shutting down Black's play and preparing Rxf7+ and Nxd6.

Oct-01-24		Tiggler: I agree with TheaN. 24.Re7+ is mate in 4, but 24.Qxf6 appears to be no better than mate in 7. The move numbers, however, in his post I don't understand.

Oct-01-24		takebackok: Think a bit Tuesday, easy queen sac 24. Qxf6 gxf6 25. Rxe8+ Kh7 now i had 26. Ne7+ f5 27. Bxf5+ Kg7 28. Re1 not sure how it ends, but it will end soon.

Oct-01-24		Allderdice83: I went with simplicity. White's up a rook, so trade off pieces. 24. Rxe8+ Nxe8 25. Re1 Nf6 26. Re7 Qb8 27. Nh6+ and now ... 27 ... gxh6 28. Qxf6 (threatening 29. Qxf7+) Qf8 29. Bh7+ Kxh7 30. Rxf7+ Qxf7 31. Qxf7+ Kh8 32. Qxb7, or 27 ... Kf8 28. Rxf7+ Ke8 29. Bg6 with mate coming, or 27 ... Kh8 28. Rxf7 Qd8 29. Rxb7 Qc8 30. Rf7 Qd8 31. Nf5 Ne8 32. Nxg7 h4 33. Nxe8+ Kg8 34. Qg7#

Oct-01-24		latebishop: My thought was 24.Qxf6 gxf6 25.Rxe8+ Kh7 26.Re7 Qc8 27.Rxf7+ Kh8 28. Nh6 winning.

Oct-01-24		Twilight of the Idol: I think in this position, everything wins...? However, I can also say that sans the extra rook, I intended 24. Qxf6 gxf6 25. Rxe8+ Kh7 26. Re7 Q-any 27. Rxb7 and you sign scoresheets.

Oct-01-24		mel gibson: <22....Re2 makes no sense at all. > It must be wrong as 24. .. Rxe1 leads to a draw and the ply 22....Re2 leads to a fast loss for Black. Anyway - back to the puzzle. Stockfish 17 says: 24. Qxf6 (24. Qxf6 (1.Qxf6 gxf6 2.Rxe8+ Kh7 3.Rfe1 Qd7 4.R1e7 Bc8 5.Rxc8 Qxc8 6.Nxd6+ Kg8 7.Nxc8 Kg7 8.d6 h4 9.gxh4 Kf8 10.d7 Kg7 11.d8Q f5 12.Qe8 Kg6 13.Qxf7+ Kh6 14.Qh7+) +M14/66 74) White wins mate in 14.

Oct-01-24		mrgwbland: Was Re2 an otb mouseslip? I don't get it

Oct-01-24		Retireborn: Informator gives 20.Rfe1 as played, not 20.Ree1

Oct-01-24		Cecco: Please, <Retireborn>, correct the entire score according to the Informator.

Oct-01-24		Retireborn: <Cecco> That's it. After 20.Rfe1 the moves given make sense.

Oct-01-24		Cecco: <Retireborn>, you're right. Thanks. Of course black's 22th move becomes Rxe2.

Oct-01-24		Teyss: The score: there are two possible corrections, one from chess365 (<TheaN> thanks for looking into this) but it's strange notably because of its length and of 23...Ree8 (Rae8 makes more sense) and one from Informator which seems right. <Retireborn> do you submit a correction slip or do I do it? The puzzle: a wee bit difficult for a Tuesday. The beginning is ok, all is forced since Black cannot decline the Q sac, but then one has to find the quiet 26.Re7 and the different mating patterns. Nice combo though.

Oct-01-24		mel gibson: OK - good - the text is now corrected. Original faulty text: 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 c5 6. e4 Bb7 7. d5 exd5 8. exd5 Be7 9. Bg2 d6 10. O-O O-O 11. b3 Nbd7 12. Bb2 Re8 13. Qc2 h6 14. Rae1 Qc7 15. Nh4 Bf8 16. Ne4 Nxe4 17. Bxe4 Be7 18. Nf5 Bf6 19. Re2 h5 20. Ree1 Bxb2 21. Qxb2 Nf6 22. Bc2 Re2 23. Rxe2 Re8 24. Qxf6 gxf6 25. Rxe8+ 1-0 new corrected text: 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 c5 6. e4 Bb7 7. d5 exd5 8. exd5 Be7 9. Bg2 d6 10. O-O O-O 11. b3 Nbd7 12. Bb2 Re8 13. Qc2 h6 14. Rae1 Qc7 15. Nh4 Bf8 16. Ne4 Nxe4 17. Bxe4 Be7 18. Nf5 Bf6 19. Re2 h5 20. Rfe1 Bxb2 21. Qxb2 Nf6 22. Bc2 Rxe2 23. Rxe2 Re8 24. Qxf6 gxf6 25. Rxe8+ 1-0

Oct-01-24		chrisowen: I lob its age its went quick much its cup ji z its Qxf6 its accord mob its coffin its abe leeway its dub its chi i hit Qxf6 etc

Oct-01-24		TheaN: After the corrected score (thanks <Retire and Teyss> for looking more into it, the 365 one didn't really make a lot of sense either so I didn't submit a correction right away): <24.Qxf6!> takes out the defender of Re8, and Black has no time for 24....Rxe2? 25.Qxg7# <24....gxf6 25.Rxe8+ Kh7>: click for larger view Quite a few moves win here. Black's pieces are locked up and the king wide open. As in my original post, my idea (considering I had to go off the original image with a rook on f1) was <26.Re7 +->. One idea I actually missed was if Black tries to keep the queen on the board (compared to 26....Qxe7 27.Nxe7+ +-) the bishop's free: 26....Qb8 (Qc8 27.Nxd6+ and Qd8 27.Rxb7 +-) 27.Rxb7! Qxb7 28.Nxd6+ +- and White's up two pieces. Regardless, after 26.Re7 +- White can also take on f7 and f6 and/or d6 and Black's can't do anything worthwhile.

Oct-01-24		saturn2: After the queen sac if you dont find 26.Re7 but instead continue with a knight move gets complicated.

Oct-01-24		al wazir: Continuation: 25...Kh7 26. Re7 Qd8 (26...Qxd8 27. Nxd8 leaves white a piece up) 27. Rxf7+ Kg8 28. Nh6+ Kh8 29. Rh7#

Oct-01-24		vajeer: Puzzle made complicated by addition of the rook :-) With extra rook I was happy to play no-nonsense Rxe8, lol.

Oct-01-24		King.Arthur.Brazil: The king doesn't think it is simple: 24. Qxf6 (Rxe2?? 25. Qxg7#) gxf6 25. Rxe8+ Kh7 26. Re7 Qc8 (or b8) 27. Rxf7+: A: Kg6 28. Rg7# , B: Kg8 28. Nh6+ Kh8 29. Rh7#, C: 28. Ne7 Qg8 (otherwise ... 29. Rh7#) 29. Nxg8 Kxg8 30. Rxb7 and Re1... e8#.

Oct-01-24		Rosbach: I didn't get it but after checking and knowing the first move was Qxf6 I found the below winning moves: 4. Qxf6 gxf6 25. Rxe8+ Kh7 26. Re7 Qb8 27. Rxf7+ Kh8 28. Nh6 or 24. Qxf6 gxf6 25. Rxe8+ Kh7 26. Re7 Qb8 27. Rxf7+ Kg8 28. Nh6+ Kh8 29. Rh7#

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