Tennison Gambit

One of my private pupils rushed in excitedly to tell me he’d discovered an amazing new opening: he always wins whenever he plays it.

I asked him the name of the opening. “The Tennison Gambit”, he replied.

The what? Unless you’re an expert in obscure gambits you could be forgiven for not knowing what he was talking about.

First of all, it’s nothing at all to do with Alfred, Lord Tennyson. Tennyson the poet was appointed President of the revived British Chess Association in 1883: I guess they were looking for a big name, and in 1883 celebrities didn’t come much bigger than Tennyson. His actual interest in chess, though, seems to have been fairly peripheral, although back in 1862 his 8-year-old son Lionel played chess against Lewis Carroll. I imagine his dad taught him the moves. History doesn’t record whether or not young Lionel played the Tennison Gambit.

So what is the Tennison Gambit? It’s named after the Danish born American amateur Otto Mandrup Tennison (1834–1909) and starts 1. Nf3 d5 2. e4 (or, if you prefer, 1. e4 d5 2. Nf3).

Here’s a game he played in 1891:

1. Nf3 d5 2. e4 dxe4 3. Ng5 f5 4. Bc4 Nh6 5. Nxh7 Rxh7 6. Qh5+ Kd7 7. Qg6 Rh8 8. Be6+ Kc6 9. Bxc8+ Qd6 10. Qe8+ Kb6 11. Qa4 when Black, rather prematurely, resigned instead of trying to struggle on with 11.. Nc6.

How did my pupil discover this opening? It seems like he read somewhere that 1. Nf3 was the Réti Opening, and, under the misapprehension that the idea of the move was to transpose into a king’s pawn opening, decided to try it out. He played a game online starting 1. Nf3 d5 2. e4, which he won. The computer informed him he was playing the Tennison Gambit, and, because he won the game and he knew 1. Nf3 was popular, he assumed this gambit was both popular and strong. He also told me that after 1. Nf3 e5 he’d play 2. e4, transposing into what he knows. “What about playing 2. Nxe5 instead?”, I asked, but he didn’t seem interested. So his idea was that 1. Nf3 is a great move because after 1.. e5 you transpose, but if Black errs with 1.. d5 you play the brilliant Tennison Gambit.

Is the Tennison Gambit any good? It looks like you’re playing a reverse Budapest with an extra move, and the Budapest is certainly playable for Black, at least at club level. But if you stop and think about it you’ll realise that, if you play the Budapest with Black you’re doing to because you think you can take advantage of White’s c4 by playing Bb4+ at some point. The Tennison Gambit doesn’t give you this option.

So, in a word, no, it’s not any good. You’re just giving up a pawn for next to nothing. But if you google ‘Tennison Gambit’ you’ll come across a few videos like this. To save you the trouble of watching, you’re advised to play these moves:

1. e4 d5 2. Nf3 (if you really want to play the Tennison Gambit you’re more likely to get it after 1. Nf3 than 1. e4) 2.. dxe4 3. Ng5 Nf6 (3.. Bf5, which, according to the video, ‘doesn’t look right’, is more accurate while 3.. e5 is another option) 4. d3 (4. Bc4 is probably a better move, when White has some initiative) 4.. exd3 5. Bxd3 h6 (White isn’t actually threatening anything so something like 5.. Nc6 leaves White with little to show for the missing pawn) 6. Nxf7 Kxf7 7. Bg6+ winning the black queen. You may well recognise this, with colours reversed, as a familiar trap in the Budapest. How many times have the moves in this game occurred in my 7 million game database? A big fat zero.

You see why so many kids tell me about the ‘secret opening tricks’ they’ve learnt: this is one of a whole series of videos by the same presenter. Even some otherwise reputable sources have their fair share of videos recommending dodgy opening traps (don’t get me started on the Fishing Pole Trap). If you look at the comments you’ll soon discover that there must be millions of players worldwide who have been taken in by this sort of thing and think the idea of the opening is to memorise traps and spring them on unwary opponents. Facebook groups concerning chess books and chess teachers are bombarded with requests for recommended books and lessons about opening traps.

In this case, no harm was done and some important lessons were learnt. Misunderstandings are an important learning tool, as long as you have a teacher who can put you right. I wonder how many novices, misled by the seductive idea of opening traps, fail to make progress and eventually give up because they have the wrong idea about what you’re supposed to do at the start of the game.

Richard James

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About Richard James

Richard James is a professional chess teacher and writer living in Twickenham, and working mostly with younger children and beginners. He was the co-founder of Richmond Junior Chess Club in 1975 and its director until 2005. He is the webmaster of chessKIDS academy ( or and, most recently, the author of Chess for Kids and The Right Way to Teach Chess to Kids, both published by Right Way Books. Richard is currently the Curriculum Consultant for Chess in Schools and Communities ( as well as teaching chess in local schools and doing private tuition. He has been a member of Richmond & Twickenham Chess Club since 1966 and currently has an ECF grade of 177.