Examine individual changes

'{{Infobox chess opening |openingname = Tennison Gambit |image = {{Chess diagram|| |rd|nd|bd|qd|kd|bd|nd|rd |pd|pd|pd| |pd|pd|pd|pd | | | | | | | | | | | |pd| | | | | | | | |pl| | | | | | | | |nl| | |pl|pl|pl|pl| |pl|pl|pl |rl|nl|bl|ql|kl|bl||rl }} |moves = 1.Nf3 d5 2.e4 <br />or <br/>1.e4 d5 2.Nf3 |ECO = A06 |birth = |nameorigin = Otto Mandrup Tennison |parentopening = [[King's Pawn Game]] |AKA = [[István Abonyi|Abonyi]] Gambit<br/>Black Rook's Gambit<br/>[[Lemberg]] Gambit<br/>[[Lviv]] Gambit<br/>Polish Gambit<br/>[[Johannes Zukertort|Zukertort]] Gambit |chessgid = 287531&move=2&moves=e4.d5&nodes=21720.287531 }} The '''Tennison Gambit''' is a [[chess opening]] in which [[White and Black in chess|White]] [[gambit]]s a [[Pawn (chess)|pawn]].<ref>Schiller, Eric. ''Gambit Opening Repertoire for White – Tennison Gambit'' (pp. 171–78). Cardoza Publishing. {{ISBN|0940685787}}</ref><ref>[http://www.vachess.org/news/1998_2.pdf Virginia Newsletter (1998). pp. 13–15]</ref><ref>[https://www.365chess.com/eco/A06_Tennison_(Lemberg_Zukertort)_gambit 365.com – A06: Tennison (Lemberg, Zukertort) gambit]</ref><ref>[http://www.chessgames.com/perl/chesscollection?cid=1009312 Tennison gambit Collection] [[Chessgames.com]]</ref> The [[List of chess openings|''ECO'' code]] is A06, and the opening moves begin with either the [[Réti Opening]]:<ref>[http://www.chessgames.com/perl/chessopening?eco=A06 Reti Opening A06] [[Chessgames.com]]</ref> :1. [[b:Chess Opening Theory/1. Nf3|Nf3]] [[b:Chess Opening Theory/1. Nf3/1...d5|d5]] <br />2. e4 or the [[Scandinavian Defense]]: :1. [[b:Chess Opening Theory/1. e4|e4]] [[b:Chess Opening Theory/1. e4/1...d5|d5]] <br />2. Nf3 {{algebraic notation|pos=toc}} ==History== The first person to significantly research this opening was chess amateur Otto Mandrup Tennison (1834–1909).<ref name="Wall">[http://billwall.phpwebhosting.com/articles/Tennison%20Gambit.htm Wall, Bill. ''Tennison Gambit''.]</ref><ref>[http://www.chessgames.com/perl/chessplayer?pid=99715 Otto M. Tennison] [[Chessgames.com]]</ref> Tennison was born in Denmark, studied in Germany and moved to the United States in 1854. There he played in the chess clubs of [[New Orleans]]. Many strong players picked up the idea from the first half of the [[20th century]]. ==After 2...dxe4 3.Ng5== '''3... e5{{chesspunc|!}}''' (White had the advantage in [[Evgenij Ermenkov|Ermenkov]]–Bonchev, Bulgaria 1970, after 3...Nf6{{chesspunc|?!}} 4.Bc4 e6 5.Nc3 a6 6.Ngxe4 Nxe4 7.Nxe4 b5 8.Be2 Bb7 9.Bf3) '''4. Nxe4 f5!''' favors Black.<ref>{{cite book |last1=Benjamin |first1=Joel |authorlink1=Joel Benjamin |last2=Schiller |first2=Eric |authorlink2=Eric Schiller |title=Unorthodox Openings |publisher=[[Macmillan Publishers (United States)|Macmillan Publishing Company]] |year=1987 |page=79 |contribution=Tennison Gambit |isbn=0-02-016590-0}}</ref> ==Cultural impact== ==== Intercontinental Ballistic Missile Variation ==== On October 11, 2020, the [[YouTube]] channel Bosnian Ape Society uploaded a video demonstrating a variation called the "Intercontinental Ballistic Missile Variation of the Tennison Gambit". This variation gained attention among players in chess-related forums, such as [[Reddit]] and [[chess.com]]. The video itself starts by teaching the gambit, which is actually playable. Following move 7, it shows an [[intercontinental ballistic missile]], in particular a [[RT-2PM2 Topol-M]] Missile, destroying the board, this being the joke. (Fir beginners at chess, [[anti-tank guided missiles]] are recommended instead.) <ref>Bosnian Ape Society. "Chess Trap to Trick Your Opponent: Tennison Gambit Intercontinental Ballistic Missile Variation ". Uploaded October 11, 2020. https://www.youtube.com/watch?v=E2xNlzsnPCQ</ref> The variation is as follows: :1.e4 d5 :2.Nf3 dxe4 (original Tennison Gambit) :3.Ng5 Nf6 :4.d3?! exd3 :5.Bxd3 h6? :6.Nxf7! Kxf7 :7.Bg6+! Kxg6 :8.Qxd8. This, of course, includes a significant number of dubious moves and will therefore rarely see play. However, it still provides White with a significant material advantage: being up a queen at the cost of a knight and a light-squared bishop. But this still leaves White's queen vulnerable, and black can exploit this by laying a trap with 8.... e6. If White continues to grab material with 9.Qxc8?, black can play 9.... Bb4+!. This [[discovered attack]] allows Black to recapture White's queen , though this may or may not lose Black's dark-squared bishop in the process due to: :10. c3 Rxc8 :11.cxb4. If White falls for this trap, Black has a knight for White's dark-squared bishop and material is even. <ref>Gotham, Levy. "INTERCONTINENTAL BALLISTIC MISSILE GAMBIT". Uploaded December 5th, 2020. https://www.youtube.com/watch?v=yc91zIltxIo</ref> There is no official statement from any formal chess institution regarding this gambit variation. {{Chess diagram|| |rd|nd|bd|qd| |bd| |rd |pd|pd|pd| |pd| |pd| | | | | | |nd|kd|pd | | | | | | | | | | | | | | | | | | | | | | | | |pl|pl|pl| | |pl|pl|pl |rl|nl|bl|ql|kl| | |rl }} If White falls for the trap: {{Chess diagram|| |rd|nd|rd| | | | | |pd|pd|pd| | | |pd| | | | | |pd|nd|kd|pd | | | | | | | | | |pl| | | | | | | | | | | | | | |pl|pl| | | |pl|pl|pl |rl|nl|bl| |kl| | |rl }} ==Notable games== Otto M. Tennison vs. {{chessgloss|NN}}, New Orleans 1891 <br />''' :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''' If 11...Qc6 then 12.Qb3+ Ka6 13.Nc3 any 14.Bxb7+; 11...e6 12.a3, etc. (Tennison) '''{{chessAN|1–0}}''' ==See also== * [[List of chess gambits]] ==References== {{Reflist|30em}} ==Further reading== * Bekemann, Uwe. (2016). ''[http://www.schachversand-ullrich.de/literatur/eroeffnung/-in-englischer-sprache/1805/bekemann-better-late-than-never-the-tennison-gambit?c=55 Better late than never – The Tennison Gambit]''. Schachverlag Ullrich. {{ISBN|978-3959209663}} * Lutes, John. (2002). ''[https://books.google.ca/books?id=x7fOsJ5dW-4C&q=9780945470557&dq=9780945470557&hl=en&sa=X&ved=0ahUKEwjLs_Sklu_SAhWo1IMKHVgIDYsQ6AEIHDAA Tennison Gambit]''. Chess Enterprises. {{ISBN|9780945470557}} {{Chess|state=collapsed}} [[Category:18th century in chess]] [[Category:1854 in chess]] [[Category:1854 introductions]] [[Category:Chess openings]] {{Chess-opening-stub}}'