I've been watching Erika Nu's games for some time. Here are a couple recent finishes.
In Game 14471123 against Bobek139 (Black), the following position was reached after 28...Nd7-b6:
Owing to the veiled attack on White's bishop, White exchanged rooks, reaching the following:
How should White parry the attack on the bishop?
White played 30. Nb2!, which prepares the advance of the queenside pawns. (See the following chess movie.)
This PGN could not be parsed.
[fen "3r2k1/pb3p1p/1n4p1/8/1PN5/P2B3P/5PP1/4R1K1 w - - - -"]
30. Nb2 Rd7 31. b5 Kf8 32. a4 {Now 32...Nxa4 would lose owing to 33. Nxa4 Rxd3 34. Nc5, forking.} Rd4 33. a5 {If now 33...Na4, then 34. Nxa4 Rxa4 35. a6 Bd5 36. Rc1 Ra3 37. Bf1, and Black's a-pawn will soon fall.} Nc8 34. Rc1 Nd6
35. a6 Bc8 36. Rc7 Rd5 37. Bc4 Rd2 38. b6 {Black resigns. On 38...Rxb2, 39. bxa7 will soon promote.} 1-0
- move 1 could not be played: Invalid PGN : Error converting move Nb2
[fen "3r2k1/pb3p1p/1n4p1/8/1PN5/P2B3P/5PP1/4R1K1 w - - - -"]
30. Nb2 Rd7 31. b5 Kf8 32. a4 {Now 32...Nxa4 would lose owing to 33. Nxa4 Rxd3 34. Nc5, forking.} Rd4 33. a5 {If now 33...Na4, then 34. Nxa4 Rxa4 35. a6 Bd5 36. Rc1 Ra3 37. Bf1, and Black's a-pawn will soon fall.} Nc8 34. Rc1 Nd6
35. a6 Bc8 36. Rc7 Rd5 37. Bc4 Rd2 38. b6 {Black resigns. On 38...Rxb2, 39. bxa7 will soon promote.} 1-0
In Game 14637800 against cardinalal (Black), the following position was reached after 26...e6-e5:
White played 27. Nf2!, opening the queen's path to the a2/g8 diagonal while retaining all of the rooks (which significance will soon be seen).
This PGN could not be parsed.
[fen "5rkb/1p1qn2p/p4rpP/P1B1p3/1P1pP3/3N4/2P1Q1P1/R4RK1 w - - - -"]
27. Nf2 Qe6 28. Rab1 {Opening the b-file will provide further avenues into Black's position.} R8f7 29. b5 {Perhaps the least evil now is 29...axb5 30. Qxb5 Nc8, although it's dismal for Black.} Qd7 30. bxa6 Rxa6 31. Ng4
{If now 31...Rxf1+ 32. Rxf1 Qe6, then 33. Qb5 threatens 34. Qe8+ or 34. Qxb7.} Rc6 32. Qc4 {Now 32...Qe6 would lose to 33. Qxe6 Rxe6 34. Rxf7 Kxf7 35. Rxb7 followed by trading down at e7 and promoting the a-pawn.} Nc8 33. Rxf7 Qxf7 34. Rf1 {A Maltese cross: Black's queen is pinned against both the king and the f8-square. Black resigns.} 1-0
- move 1 could not be played: Invalid PGN : Error converting move Nf2
[fen "5rkb/1p1qn2p/p4rpP/P1B1p3/1P1pP3/3N4/2P1Q1P1/R4RK1 w - - - -"]
27. Nf2 Qe6 28. Rab1 {Opening the b-file will provide further avenues into Black's position.} R8f7 29. b5 {Perhaps the least evil now is 29...axb5 30. Qxb5 Nc8, although it's dismal for Black.} Qd7 30. bxa6 Rxa6 31. Ng4
{If now 31...Rxf1+ 32. Rxf1 Qe6, then 33. Qb5 threatens 34. Qe8+ or 34. Qxb7.} Rc6 32. Qc4 {Now 32...Qe6 would lose to 33. Qxe6 Rxe6 34. Rxf7 Kxf7 35. Rxb7 followed by trading down at e7 and promoting the a-pawn.} Nc8 33. Rxf7 Qxf7 34. Rf1 {A Maltese cross: Black's queen is pinned against both the king and the f8-square. Black resigns.} 1-0