{"challenge":{"challenge_date":"2026-10-26T00:00:00.000Z","puzzle_id":18275,"fen":"3r1rk1/ppp1q1pp/1n1b1n2/3P2B1/1P4b1/P1N2N2/2P1BPPP/R2Q1RK1 w - - 1 13","moves":"g1h1 g4f3 e2f3 e7e5","solution_moves":"g4f3 e2f3 e7e5","rating":1745,"themes":["advantage","middlegame","short"],"opening_name":"Englund Gambit Complex Englund Gambit Complex Soller Gambit","narrative":{"text":"White just played Kh1 — and it's a mistake. Find the best way to punish it as Black.","boardFen":"3r1rk1/ppp1q1pp/1n1b1n2/3P2B1/1P4b1/P1N2N2/2P1BPPP/R2Q1R1K b - - 2 13","lastMove":"g1h1","solverColor":"black"}}}