[Event "ch-USA 2022"] [Site "https://lichess.org/study/dfRDZs7P/aruYHInj"] [Date "2022.10.11"] [Round "6"] [White "Niemann, Hans Moke"] [Black "Robson, Ray"] [Result "0-1"] [WhiteElo "2699"] [BlackElo "2690"] [Annotator "Shlyakhtenko,Robert"] [Variant "From Position"] [ECO "?"] [Opening "?"] [StudyName "2022 U.S. Championships"] [ChapterName "Niemann, Hans Moke - Robson, Ray"] [FEN "q4rk1/4bppp/rp2p3/p2nP3/4N2N/P5P1/1P3PP1/2RQR1K1 w - - 0 20"] [SetUp "1"] [Source "https://lichess.org/study/dfRDZs7P/aruYHInj"] [Orientation "white"] { [#] [%evp 0,32,34,9,9,6,16,-23,-48,-62,-66,-50,-70,-134,-81,-93,-80,-122,-124, -315,-299,-324,-320,-390,-360,-325,-339,-398,-394,-775,-775,-806,-806,-806, -824] } 20. Qh5?! { White has no reason to seek a kingside attack with the h4-knight out of play. } (20. Nf3 { White should first centralize the pieces. } 20... b5 21. Nd4 Rb6 22. f4 { Now this is a reasonable continuation. } 22... g6 23. Qf3 Rc8 24. g4 { with a complicated position. }) 20... b5 21. Nf3 Rc6 22. Rcd1?! { Another over-ambitious move. White avoids trades but practically commits to sacrificing the queenside pawns. } (22. Nd4 { preserves equality. }) 22... Rc2 23. b3 Ra2 24. Nd4 Rxa3 25. f4? { Niemann played the next few moves a tempo, likely overlooking Black's 27th move. Already White needed to find } (25. Qg4! Kh8 26. Nd6! Bxd6 27. exd6 Qd8 28. Nxb5 Rxb3 29. Qc4 { and the strong d-pawn enables him to keep the balance. }) 25... Ra2 26. f5 { In this case, the saying "a bad plan is better than no plan" does not apply. If White had noticed the flaw in time, he could still have played } (26. Nxb5 { and hoped to defend. }) 26... Nc3! 27. f6 { Clearly the move Niemann was counting on. I imagine he missed Black's neat rejoinder. } 27... Bxf6! { Now Niemann thought for nearly 9 minutes; unfortunately, no amount of inspiration can save his position. } 28. Nxf6+ (28. exf6 Nxe4 29. fxg7 Rc8 { offers no hope for White. Black's king is actually safer here. }) 28... gxf6 29. Nf3 Nxd1 30. exf6 Kh8 31. Rxd1 { A bit of accuracy is still required, but Robson is more than up to the task. } 31... Rg8 (31... Qe4? { was one way to go wrong: } 32. Qg5! Qg6 (32... Rg8? 33. Qxg8+!) 33. Qc5! { followed by Ne5. }) 32. Kh2 Qe4 33. Rd7 Qe2 34. Qh3 Qxf3 35. Rxf7 Rxg2+ { After 36. Qxg2 Qh5+ Black picks up the rook. } 0-1