King's Gambit Adelaide Countergambit: Adviser, Diagrams and Replay Lab

The King's Gambit Adelaide Countergambit is 1.e4 e5 2.f4 Nc6 3.Nf3 f5. Black declines the f-pawn, develops the queen's knight, then counterattacks with ...f5. Use the Adelaide Countergambit Start Diagram.

The exact anchor is 1.e4 e5 2.f4 Nc6 3.Nf3 f5. White then usually chooses 4.exf5, 4.Nc3, 4.d4, 4.Bc4 or 4.d3. Use the Adelaide Countergambit Start Diagram.

Yes. Black does not play 2...exf4 immediately, so it belongs to the King's Gambit Declined family. Use the Branch Map to return to the declined parent page.

Black uses 2...Nc6 to develop and support central control before challenging White's kingside and centre with ...f5. Use the Adelaide Countergambit Start Diagram.

Black plays ...f5 to contest White's f-pawn advance and create immediate counterplay on the kingside and in the centre. Use the Adelaide Countergambit Start Diagram.

It is sharp because both sides create pawn tension on e4, e5, f4 and f5 very early, often leaving kings in the centre. Use the 4.exf5 e4 Diagram.

It is a practical countergambit weapon, especially for players who want active play instead of passive declined structures. Use the Replay Lab's Black-win groups.

Yes, if Black knows the main forcing patterns. It can punish White players who expect only 2...exf4 or 2...Bc5. Use the Adviser with side set to Black.

White accepts the f5 challenge and tries to use the open f-file and central tension before Black coordinates. Use the 4.exf5 e4 Diagram.

After 4.exf5 e4, Black gains central space and attacks the f3 knight, forcing White to choose a knight route. Use the 4.exf5 e4 Diagram.

After 4.exf5 e4, 5.Ne5 is the main active jump, often met by 5...Nxe5. Use the 5.Ne5 Nxe5 Diagram.

Black removes the advanced knight and opens forcing lines where White often uses fxe5 and Qh5+. Use the 5.Ne5 Nxe5 Diagram.

White often plays Qh5+ after fxe5 and ...Qe7 to pull Black's king into the open and test Black's coordination. Use the Qh5+ Check Diagram.

White develops and supports e4 before clarifying the f-pawn tension. Black often answers with ...fxe4. Use the 4.Nc3 fxe4 Diagram.

White plays 4.d4 to seize central space and make Black prove that ...f5 is not overextended. Use the 4.d4 fxe4 Diagram.

White uses 4.d3 for a slower structure where both sides develop before the centre opens. Use the 4.d3 Closed Setup Diagram.

Black usually plays ...e4, hits the f3 knight, and tries to make White's extra pawn irrelevant through central initiative. Use the 4.exf5 e4 Diagram.

Black can answer 4.Nc3 with ...fxe4 and then use ...Nf6, ...d5 or ...Bc5 depending on White's recapture. Use the 4.Nc3 fxe4 Diagram.

Black can take on e4 or develop with ...Nf6, but must stop White from building a stable broad centre. Use the 4.d4 fxe4 Diagram.

...Qe7 supports the e5/e4 complex and prepares to meet Qh5+ lines with a concrete king route. Use the Qh5+ Check Diagram.

Black allows Qh5+ when the resulting king walk is backed by central activity and piece play. Use the Replay Lab's Qh5+ group.

...Bc5 develops with pressure and often appears after White's queen and king are exposed. Use the Replay Lab's 4.exf5 groups.

Black should avoid playing ...f5 without knowing the forcing queen-check lines. Use the Adviser with side set to Black.

White should avoid taking on f5 and then drifting while Black gains tempi with ...e4 and ...Qe7. Use the 4.exf5 e4 Diagram.

Start with Gallagher vs Wohl for the classic 4.exf5 e4 5.Ne5 Nxe5 and Qh5+ pattern, then compare Fier vs Hammer for Black's practical win. Use the Replay Lab selector.

Gallagher vs Wohl, Sarthou vs Lacrosse, Fier vs Hammer, Zelbel vs Tomazini and Gupta vs Atoufi show Qh5+ structures. Use the Qh5+ replay group.

Balzar vs Neidhardt, Westerinen vs Liiva and Raetsky vs Vianin show 4.Nc3 fxe4 structures. Use the 4.Nc3 replay group.

Barle vs Klein, De Bortoli vs Mitkov, Rechel vs Wohl, Syska vs Graindorge, Malinin vs Gavrilov and Ivanchuk vs Nakamura show 4.d4 or related centre systems. Use the 4.d4 replay group.

Frink vs Krivolapov, Frink vs Thorfinnsson and Gongora Montes vs De la Paz Perdomo show 4.Bc4 systems. Use the 4.Bc4 replay group.

Vallejo Diaz vs De la Paz Perdomo and Ivanchuk vs Nakamura show 4.d3 style structures. Use the 4.d3 replay group.

Fier vs Hammer, Barle vs Klein, Westerinen vs Liiva, Frink vs Krivolapov, Wall's games, Hammer's games and Malinin vs Gavrilov show Black resources. Use the Black-result replay groups.

Gallagher vs Wohl, Kamsky vs Mamedyarov from the wider 2...Nc6 family, Sarthou vs Lacrosse, Syska vs Graindorge, Ivanchuk vs Nakamura, Zelbel vs Tomazini and Raetsky vs Vianin show White resources. Use the White-result replay groups.

Black should play it if they want an active declined King's Gambit weapon with immediate counterplay and forcing lines. Use the Adviser with side set to Black.

White does not need to avoid it, but should prepare 4.exf5 e4, 5.Ne5, Qh5+, 4.Nc3, 4.d4, 4.Bc4 and 4.d3. Use the diagram grid.

Yes, it is especially practical in blitz because early ...f5 creates unfamiliar decisions and forcing tactics. Use the Replay Lab.

It is playable as a surprise weapon, but it needs concrete preparation because many lines are forcing. Use the Adviser before choosing it.

No. The Falkbeer is 2...d5, while the Adelaide uses 2...Nc6 followed by 3...f5. Use the Branch Map to compare the Falkbeer page.

White should prepare the forcing 4.exf5 e4 lines first, then add 4.Nc3, 4.d4, 4.Bc4 and 4.d3 alternatives. Use the diagram grid.

Black should prepare ...e4 after 4.exf5, ...fxe4 against 4.Nc3 or 4.d4, and queen-check king-walk lines. Use the Adviser with side set to Black.

After this page, study the King's Gambit Declined parent, Falkbeer Countergambit, Classical Defense, King's Gambit Accepted and Fischer Defense pages. Use the Branch Map links.