Jerome Gambit: Give Your Opponent Enough Rope

Sometimes the best strategy in the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) is to develop your pieces, use your "Jerome pawns," and give your opponent opportunites to misplay the game. 

It is interesting how many times that actually happens, as in the following game.

Wall, Bill - Emirat

sparkchess, 2025

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 

Black avoids the excitement that might come after 6...Ke6.

The Database has 3,907 games with this position. Black scores 53%.

7.Qxe5 d6 8.Qh5 

White's Queen move is relatively rare, as 8.Qf4+ and 8.Qg3 are more often seen. Bill likes to experiment.

8...Nf6 

Or 8...g6 9.Qe2 Kg7 10.Nc3 Qh4 11.d3 Bg4 12.Qd2 Nf6 13.O-O Rhf8 14.d4 Bb6 15.f3 Be6 16.Rf2 c6 17.Na4 Bc7 18.b3 Rac8 19.c3 h6 20.Nb2 g5 21.Nd3 Nh5 22.Ba3 Rf7 23.Raf1 d5 24.e5 Nf4 25.Nc5 Re8 26.g3 Nh3+ 27.Kg2 Qh5 28.Nxe6+ Rxe6 29.Re2 g4 30.fxg4 Qxg4 31.Rxf7+ Kxf7 32.Bc1 Ng5 33.Qf4+ Qxf4 34.gxf4 Ne4 35.f5 Re8 36.Rc2 h5 37.Bf4 Rg8+ 38.Kf3 Bb6 39.Be3 Rg4 40.f6 Ba5 41.c4 Bc3 42.cxd5 cxd5 43.a3 Ke6 44.b4 a6 45.a4 Rg8 46.b5 h4 47.Kf4 h3 48.bxa6 bxa6 49.Rc1 Rg2 50.Rh1 Bb2 51.Rg1 Rxg1 52.Bxg1 Nc3 53.Kg4 Ne2 54.Bf2 Bxd4 55.Bxd4 Nxd4 56.Kxh3 Nc6 White resigned, Wall,B - Mart, sparkchess, 2024. 

9.Qe2 Qe7 

Someone wandering by might look at this position, and think "Interesting, Black has sacrificed two pawns for development, and White has lost a piece in the process."

Readers more familiar with Bill's Jerome Gambits (he has over 1,900 games in The Database) might think, instead, "Bill is giving his opponent enough rope..."

He has also seen 9...Bg4 10.f3 Be6 11.c3 Bd7 12.d4 Bb6 13.O-O a5 14.Rd1 c5 15.Be3 Qe8 16.dxc5 dxc5 17.Nd2 Ra6 18.Nc4 Bb5 19.a4 Bxc4 20.Qxc4 Ke7 21.Rd2 Qf7 22.Bxc5+ Bxc5+ 23.Qxc5+ Ke6 24.e5 Nd7 25.Qd5+ Ke7 26.Qxd7+ Black resigned, Wall,B - ChessMonkey, internet, 2021; and 

9...Kf7 10.d4 Bb6 11.Nc3 Bxd4 12.Qc4+ Be6 13.Qxd4 Re8 14.O-O Kg8 15.Bg5 Rf8 16.f4 Qe8 17.f5 Bd7 18.Qc4+ Kh8 19.Qxc7 Bc6 20.Bxf6 Rxf6 21.Qa5 Qh5 22.Rf3 Qg4 23.Raf1 Qg5 24.a3 Qd2 25.Qb4 Qxc2 26.Rd1 a5 27.Qb6 Re8 28.Rf2 Black resigned, Wall,B - Ahmed, internet, 2023.

10.Nc3 Bd7 11.O-O a6 

White's plan will be, as frequently is the case, playing f2-f4-f5.

12.Kh1 Bc6 13.d3 Bd4 14.f4 Bxc3 15.bxc3 Re8 16.Be3 Kf7 

Black is still okay, but there are storm clouds gathering. He plans to castle-by-hand.

17.c4 Rhf8 18.Rf3 Kg8 

19.Rg3 Qf7 20.f5 Kh8 21.Bd4 Rg8 22.Qe1 Nd7 23.Rh3 

23...Ne5 

Black blocks the enemy Bishop to blunt it's pressure along the a1-h8 diagonal.

In doing so, he overlooks something crucial.

24.Rxh7+ Kxh7 25.Qh4+ Black resigned

The Pseudo-Benoni Bukayev Gambit With b7-b5 Which Is Stronger Than the Blumenfeld Gambit

 

                The Pseudo-Benoni Bukayev Gambit With b7-b5                                                Which Is Stronger Than the Blumenfeld Gambit                                      

                                      by Yury V. Bukayev

 

Since this famous blog isn't only about JG, today let me introduce my new analytical invention which was born after my looking at the following won "almost Jerome-ish" GM-GM game:

 

GM Sandro Mareco - GM Hikaru Nakamura; PRO Chess League (Knock-Out), 2017, rapid, rd 2, Mar-08;

Reti Opening: Reversed Blumenfeld Gambit (A09)

 

1.Nf3 d5 2.c4 d4 3.b4 c5 4.e3 dxe3 5.fxe3 cxb4 6.d4 Nf6 7.Bd3 g6 8.a3 bxa3 9.O-O Bg7 10.Bxa3 O-O 11.Nc3 Nc6 12.h3 b6 13.Qe2 Bb7 14.Rac1 Rc8 15.Rfd1 Na5 16.Bb4 Nc6 17.Ba3 Bh6 18.Rc2 Re8 19.c5 e5 20.d5 Nxd5 21.Nxd5 Qxd5 22.Bxg6 Qb3 23.Rd3 Qa4 24.Bxf7+ Kxf7 25.Ng5+ Kg8 26.Qh5 Re7 27.Rf2 Bxg5 28.Qxg5+ Rg7 29.Qf5 Ne7 30.Qxc8+

1-0.

 

This game let me start to think about possible attacking positions of White's King's Bishop. And then I understood that c2-c4 before the Reversed Blumenfeld Gambit (A09) and ...c7-c5 before the Blumenfeld Gambit (E10) are not necessary moves for making an early gambit by b-pawn! Thus, here is my new gambit:

 

1.d4 Nf6 2.c4 e6 3.Nf3 Be7 4.d5 b5!!? AN (let me name it as 'Pseudo-Benoni Bukayev Gambit').

 

The strongest way for White is its acceptance

 

5.dxe6 fxe6 6.cxb5   ,

 

and after

 

6...a6!

 

or

 

6...0-0!

 

Black has enough good counter-play, a serious compensation for the sacrificed pawn.

 

And it is extremely important that in both cases Black's position is better than Black's position in the Blumenfeld Gambit after 4...b5. In fact, the early move ...Be7 is more useful for a gambit play here than early Benoni's ...c5.

 

That is why I recommend to study Jerome-ish and "almost Jerome-ish" games to generate new valuable gambit ideas. 

 

 

                                       Contact the author: istinayubukayev@yandex.ru

 

Jerome Gambit: Always A Lot of Action

There is always a lot of action in angelcamina's 1-minute games.

In the following one, players average about 1 1/3 seconds thinking time per move. White, a little less; Black a little more - hence the outcome. 

angelcamina - GezanM

1 0 bullet, lichess.org, 2025

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 

7.Qd5+ 

The "nudge" to drive the King back, to interfere with the development of the Rook.

7...Kf8 8.Qxc5+ Qe7

9.Qc4

angelcamina has also played the not-so-popular (according to The Database) 9.Qxe7+, i.e. 9...N8xe7 10.0–0 Kf7 11.f4 Rf8 12.d4 Kg8 13.f5 Nh4 14.g3 Nhxf5 15.exf5 Rxf5 16.Rxf5 Nxf5 17.c3 d5 18.Bf4 c6 19.Nd2 h6 20.Re1 g5 21.Bd6 Nxd6 22.Re6 Bxe6 White resigned, angelcamina - Fravis02, 1 0 bullet, lichess.org, 2023. The early Queen exchange was not the reason for his loss.

9...Nf6 10.Nc3 d6 11.O-O 

Or 11.d3 Be6 12.Qb4 b6 13.O-O as in angelcamina - aleb12000, 1 0 bullet, lichess.org, 2022 (0-1, 32) 

11...Be6 12.Qb4 

The wandering Queen, again.

12...b6 

Black does not have to protect the b-pawn. for example, 12...Kf7 13.f4 Bd7 as in angelcamina - Jigsaw71, 1 0 bullet, lichess.org, 2021 (1-0, 20) and  angelcamina - joshuamanlangit34, 1 0 bullet, lichess.org, 2022 (0-1, 35).

There is also 12...Re8 13.d3 Ne5 14.f4 Neg4 15.h3 Ne3 16.Bxe3 Bxh3 17.gxh3 h5 18.Kh2 Qe6 19.f5 Qe5+ 20.Bf4 Qe7 21.Qxb7 Nh7 22.Nd5 Qd7 23.Qxc7 Qxc7 24.Nxc7 Re7 25.Ne6+ Kf7 26.Bxd6 Rb7 27.b3 Nf6 28.Ng5+ Ke8 29.e5 Nd5 30.c4 Ne3 31.Rf3 Nc2 32.Rc1 Nb4 33.a3 Nc6 34.b4 Nd4 35.Rf4 Nc6 36.d4 Ne7 37.Bxe7 Kxe7 38. f6+ gxf6 39.exf6+ Kd6 40.f7 Rf8 41.d5 Ke5 42.Rf2 Rbxf7 43.Nxf7+ Rxf7 44.Rxf7 Ke4 45.Rxa7 Kd4 46.Rh7 Kd3 47.Rxh5 Ke3 48.d6 Kd4 49.d7 Ke4 draw, angelcamina - Armind55, 1 0 bullet, lichess.org, 2025; and 

12...c6 13.f4 a5 (13...c5 14.Qb5 Qf7 15.f5 Bc4 16.fxg6 Bxb5 17.gxf7 Bxf1 18.Kxf1 Kxf7 19.d3 h6 20.Ke2 Rhe8 21.h3 Rad8 22.Bf4 d5 23.e5 d4 24.Ne4 Nd5 25.Bg3 Kg8 26.Rf1 c4 27.b3 Nb4 28.a3 Nxc2 29.Rc1 Nxa3 30.bxc4 b5 31.Ra1 Nc2 32.Rxa7 bxc4 33.dxc4 Black resigned, angelcamina - akshayzimare, 1 0 bullet, lichess.org, 2024; or 13...Bd7 as in, angelcamina - bemol4ik, 1 0 bullet, lichess.org, 2025 [1-0, 25] ) 14.Qd4 c5 15.Qe3 Ng4 16.Qg3 Qh4 17.f5 Qxg3 18.hxg3 N6e5 19. fxe6+ Ke7 20.d3 Kxe6 21.Bf4 Rhf8 22.Bxe5 Nxe5 23.Nd5 b5 24.Nc7+ Black resigned, angelcamina - Mateitogladiador, 1 0 bullet, lichess.org, 2024. 

13.f3 

Or 13.f4 a5 14.Qb5 Bd7 15.Qe2 Rd8 16.d4 h6 17.e5 dxe5 18.fxe5 Kg8 19.exf6 Qxe2 20.Nxe2 gxf6 21.Rxf6 Kg7 22.Rf1 Rhf8 23.Bd2 Bb5 24.Rxf8 Rxf8 25.Nc3 Ba6 26.Re1 Rf7 27.Re6 Kg8 28.Rxg6+ Black resigned, angelcamina - ali-ahmadi, 1 0 bullet, lichess.org, 2025. 

13...a5 14.Qb5 h6 15.d4 Kf7 16.d5 Bd7 17.Qd3 Rhf8 

Black has a piece for two pawns. For now, the game has unfolded with both sides developing pieces. Eventually, a "Jerome pawn" will make its appearance.

18.f4 Kg8 19.Be3 Rfe8 

Missing 19...Nxe4 20.Qxe4 Qxe4 21.Nxe4 Rae8.

20.Rae1 Nxe4 21.Bd4 Bf5 

22.g4 Bxg4 

The sharp 22...Nxc3 was to be considered.

23.Rxe4 Qd7 24.Rxe8+ 

24...Rxe8 

This is a 1-minute game, and Black overlooks the correct 24...Qxe8.

25.Qxg6 Bf5 26.Qg3 g6 27.Re1 Rxe1+ 28.Qxe1 Bxc2 29.Qe6+ Qf7 30.Qf6 Qxf6 31.Bxf6 Kf7 

White is clearly better, with a piece for a pawn.

Then, there is the matter of the clock.

32.Bd4 Bd3 33.Kf2 Bc4 34.b3 Bd3 35.Ke3 Bf5 36.h4 h5 37.Kf3 Ke7 38.Nd1 Kd7 39.Ne3 c6 40.Nxf5 gxf5 41.dxc6+ Kxc6 42.Ke3

White, in a better position, won on time

Jerome Gambit: Akela

Bill Wall has played the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) several times against his opponent, Akela - whose name reminds me of Rudyard Kipling's stories, The Jungle Book (1894) and The Second Jungle Book (1895), which portrays the great gray wolf, leading his pack by strength and cunning. 

Today, experience out-duels strength and cunning.

Wall, Bill - Akela

internet, 2025

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ 

Bill has played the quieter 5.Nc3 against this opponent, although winning with it took some work, some patience, and some tactical alertness: 5...d6 6.d3 h6 7.O-O Nf6 8.h3 Rf8 9.Na4 Bb6 10.Re1 Kg8 11.Nxb6 axb6 12.d4 exd4 13.Nxd4 Nxd4 14.Qxd4 Bd7 15.f3 Bc6 16.Be3 Re8 17.a4 Qe7 18.b3 Qe5 19.Qd2 Qe6 20.c4 Nd7 21.Rac1 Nc5 22.Qc3 Qe5 23.Bd4 Qe7 24.Bf2 Ne6 25.Rc2 Rf8 26.Rd2 Qf6 27.Qe3 Nc5 28.Bg3 Rae8 29.Rf2 Ne6 30.Kh2 Qd4 31.Qc1 Nc5 32.Rd2 Qf6 33.Re3 Rd8 34.b4 Nxa4 35.Ra2 b5 36.cxb5 Bxb5 37.Qxc7 Qd4 38.Rea3 Qxb4 39.Qxb7 Rb8 40.Qd5+ Kh8 41.Bxd6 Nc3 42.Bxb4 Nxd5 43.Bxf8 Rxf8 44.Ra8 Kg8 45.exd5 Bc4 46.R2a5 Rxa8 47.Rxa8+ Kf7 48.Ra7+ Kf6 49.d6 Black resigned, Wall,B - Akela, internet, 2023. 

5...Nxe5 6.d4 

Or 6.Qh5+ Ke6 (6...Kf8 7.Qxe5 d6 8.Qg3 Qf6 9.Nc3 Ne7 10.O-O a6 11.d3 Ng6 12.Nd5 Qd8 13.Bg5 Qd7 14.b4 Ba7 15.c3 c6 16.Nf4 Qf7 17.Ne2 Qe6 18.Be3 Kf7 19.h3 Rf8 20.Nd4 Qe5 21.f4 Qh5 22.f5 Ne5 23.Bf4 Re8 24.Kh1 Kg8 25.Rae1 Qf7 26.Nf3 Nxd3 27.Ng5 Qc4 28.Nxh7 Kxh7 29.Qg6+ Kg8 30.Qxe8+ Kh7 31.Re2 Nxf4 32.Rxf4 g6 33.Qxg6+ Kh8 34.Rh4 checkmate, Wall,B - Akela, internet, 2024) 7.Qf5+ Kd6 8.f4 Qe7 9.Na3 Bxa3 10.bxa3 Qf6 11.fxe5+ Qxe5 12.Qxe5+ Kxe5 13.Bb2+ Kxe4 14.Bxg7 d6 15.O-O Be6 16.Rae1+ Kd5 17.c4+ Kxc4 18.Rxe6 Black resigned, Wall,B - Akela, internet, 2023

6...Bxd4 7.Qxd4 

7...Qf6 

Or 7...d6 8.O-O Nf6 as in Wall,B - Akela, internet, 2022 (1-0, 26)

8.Qc5 Nc6 9.O-O d6 10.Qb5 

White's King is safe, so he can afford to have a roaming Queen pressuring the enemy position.

10...Nge7 11.Nc3 a6 12.Qh5+ Qg6 13.Qf3+ Qf6 14.Qe2 

If the Jerome Gambit was an affront to Black's sense of how-to-play-chess, the White Queen's travel has to be further annoying.

14...Re8 15.Be3 Ng6 16.Nd5 Qd8 

17.f4 Kg8 

Black safeguards his King. White has grabbed the initiative.

18.f5 Nge7 

Defense can be more uncomfortable than offense. Here, Black might have chosen, instead, 18...Nge5 19.Qh5 Nf7. 

19.f6 

Beware the f-file.

19...Nxd5 

It can be hard to find the right path: 19...Be6 20.Qh5 Nxd5 21.exd5 Ne5 22.Qg5 g6 23.dxe6 Rxe1 24.Rae1 when White might have an edge.

20.f7+ Kh8 21.fxe8=Q+ Qxe8 22.exd5 Ne7 23.Bg5 Black resigned

Black's Knight is doomed. The defender has had enough for this game.

Jerome Gambit: Experience Counts

Been there, done that.

When it comes to the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), Bill Wall can say that.

Here is another example.

Wall, Bill - Stranger

parkchess, 2025

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.d4 

According to The Database, Bill has played 6.d4 673 times, scoring 95%.

Compare this with 6.Qh5+, which he has played 451 times, scoring 91%.

6...Bb6 7.dxe5 Ne7 8.Qf3+ Kg8 

Bill has faced other defenses.

8...Ke8 9.O-O (9.Qg3 Ng6 10.Bg5 Ne7 11.Nc3 h6 12.Bd2 Rf8 13.O-O-O Rf7 14.e6 Rf6 15.Qxg7 Rxf2 16.Bxh6 d6 17.Qh8+ Black resigned, Wall,B - Guest2896104, playchess.com, 2019) 9...Ng6 (9...Rf8 10.Qh5+ g6 11.Qxh7 g5 (11...d6 12.Bh6 Rg8 13.Bg5 Be6 14.Nc3 Qd7 15.exd6 cxd6 16.Rfd1 Kd8 17.e5 Bc5 18.exd6 Bxd6 19.Ne4 Kc8 20.Rxd6 Qe8 21.Rxe6 Black resigned, Wall,B - Guest11863268, playchess.com, 2018) 12.Qh5+ Rf7 13.Bxg5 c6 14.Nd2 Qc7 15.Nc4 a5 16.Nd6+ Black resigned, Wall,B - WGMS, FICS, 2017) 10.Nc3 Rf8 (10...d6 11.Nd5 Nxe5 12.Qg3 Ng6 13.Bg5 Qd7 14.a4 Rf8 15.a5 Bc5 16.b4 Bd4 17.Rad1 Be5 18.f4 Bf6 19.Bxf6 gxf6 20.Qc3 c6 21.Nxf6+ Rxf6 22.Qxf6 Qe7 23.Rxd6 Qxf6 24.Rxf6 Ke7 25.e5 Bd7 26.Rd1 Be6 27.f5 Nxe5 28.Rxe6+ Black resigned, Wall,B - NN, Florida, 2019) 11.Qe2 Nxe5 12.Qh5+ Rf7 13.Bg5 Black resigned, Wall,B - Guest5463336, playchess.com, 2018. 

9.Qb3+ Kf8 

Black does not gain anything by first playing 9...d5, i.e. 10.exd6+ Kf8 11.dxe7+ Qxe7 12.Qf3+ Ke8 13.O-O Rf8 14.Qd3 Bd7 15.Nc3 c6 16.Be3 Bc7 17.Rfd1 Rf7 18.Qc4 Be6 19.Qd4 Bb6 20.Qd2 Rd8 21.Qe2 Rxd1+ 22.Rxd1 Bxe3 23.Qxe3 Black resigned, Wall,B - Ahmad, sparkchess, 2025. 

10.O-O Ng6 

Or 10...d5 11.Nc3 Be6 12.Bg5 c6 13.Rad1 Qd7 14.Bxe7+ Qxe7 15.exd5 cxd5 16.Nxd5 Qf7 17.Qa3+ 18.Nxb6 Black resigned, Wall, B - Guest6791785, playchess.com 2018. 

11.Kh1 Nxe5 12.Qg3 d6 13.f4 Ng6 14.Nc3 Qh4

As White builds his attack, Black offers to exchange Queens, even at the cost of a piece, to settle things down: 15.Qxh4 Nxh5 16.f5 Kf7 17.Bg5 Nxf5 18.exf5 Re8.

15.Qd3 Kf7 16.Nd5 Re8 17.Qc4 

17...Be6 

This pin looks effective, but it energizes White's next move. Black would have done better with 17...Kf8, even if his King was staying on the dangerous f-file. 

18.f5 Bxd5 

Unleashing the danger. There was still safety - and equality - in giving up the piece with 18...Kg8 19.fxe6 c6 20.Ne3 Ne5 21.Qb3 Qxe4

19.Qxd5+ 

The capture with check makes a difference.

19...Ke7 20.fxg6 Rf8 21.Bg5+ Black resigned

Happy Independence Day!

 

Happy Fourth of July!

Please celebrate the holiday safely.

(If you have a few extra minutes, you can check out this bit of creativity from 247games.com. Of course, 247 is all about games)

Jerome Gambit: Not Going As Planned

Helmuth von Moltke the Elder, a 19th-century German military strategist, pointed out that "no plan of operations extends with any certainty beyond the first contact with the main hostile force." 

That goes for defense, as well as offense.

Like the following Jerome Gambit game.

Wall, Bill - Alwi

sparkchess. 2025

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Kf8 

Another example of Black refusing (temporarily) to capture the pawn.

Bill castles (a good move to insert here) and waits.

6.O-O Nxe5 7.d4 Bxd4 8.Qxd4 d6 

We have looked at this line before. See "Jerome Gambit: Trod These Roads Before".

9.Nc3 Be6 10.f4 Nc6 11.Qd3 Qh4 

Black has an extra piece for a pawn, and is feeling aggressive.

12.Bd2 Nge7 13.Nd5 Bxd5 14.exd5 Nd8 

Okay, things are not going as planned for the defender/counterattacker, but surely he is still better?

Stockfish 16.1 says no. 

15.Rae1 Nf7 16.Qb5 

The Queen is up to mischief.

16...b6 17.Bc3 a6 18.Qc4 Ra7 

It's a little thing, but does the Rook really belong there?

Black could have continued, instead, with 18...Nf5 19.Qxc7 Qd8 without worry.

19.Qe2 Nh6 20.g3 Black resigned

While you and I and Black were focused on the Queenside, Bill shows that the enemy Queen can no longer guard it's Knight on e7 and remain safe, at the same time.

 

How to Get an Advantage or to Win with JG (4.Bxf7+) against Maestri: the Collection of Practice (Part 6)

 

 How to Get an Advantage or to Win with

  JG (4.Bxf7+) against Maestri: 

 the Collection of Practice (Part 6)

                                          by Yury V. Bukayev

Dear readers, let me remind you that these my new posts about White's advantage and wins in such chess games are dedicated to the 150th anniversary of Alonzo Wheeler Jerome's publications with 4.Bxf7+ in Giuoco Piano. Now the world chess history knows a lot of cases, where White got an advantage or won here against grandmasters and other extremely strong defenders!

We should start this new part from the game

Mr. David - GM Andrew Tang (Checkmater47 - penguingim1, 1/4+0 ultra-bullet, Lichess.org, 2021, 0:1),

where after 

4...Kxf7 5.d4 Bxd4 6.0-0 Nf6 7.Ng5+ Kg6 8.c3 h6 9.cxd4 hxg5 10.f4 exf4 11.e5 d5 12.Qc2+ Ne4 13.Nd2 Bf5 14.Nxe4 Nxd4 15.Qd1 Bxe4 16.Bxf4 Qd7 17.Bg3 Bxg2 18.Kxg2 Qh3+ 19.Kf2 Rhf8+ 20.Ke1

White didn't resign and used his excellent chance in this terrible position to get a large advantage after Black's 20...Nf3+  - how annoying for Black! I think, GM Andrew Tang had, probably, enough strong idea (20...Rxf1+! 21.Kd2 Nf3+!?), but forgot about absence of moves 20...Rxf1+ 21.Kd2 on the board when playing ...Nd4-f3+. Thus, after 21.Rxf3 White had not only the advantage on the board, but also the time advantage and the psychological advantage.

Further, let's consider the key opening position from the game

Gergo Csikos - IM Andrew Tang (AncientAlien - penguingim1, 1/2+0 hyperbullet, Lichess.org, 2017, 0:1),

where after 

4...Kxf7 5.0-0 Nf6 6.c3 Rf8 7.d4 exd4 8.cxd4 Be7 9.d5 Kg8

White had here an equality (!) on the board, the large psychological advantage and not only it. Thus, it was much easier to find further strongest attacking moves for White, than strongest defensive responses for Black here: 10.dxc6! dxc6! 11.Qc2!. Thus, Black could find here the equality (11...Qe8! 12.Re1! Bg4!), but it was too difficult - almost impossible - for Black, in my opinion, to make it in a hyperbullet time control game without a time catastrophe.

                                            (to be continued)