Queen tier · Polish School · plays the Smith-Morra Gambit
Jin grew up in Italy but learned his chess from a coach steeped in the Polish School tradition, which prizes stubborn defence and unconventional resources. That background explains why he is so relaxed about accepting the Smith-Morra Gambit. He takes the pawn, accepts a lag in development, and trusts that his defensive technique will see him through to a position where the extra pawn counts.
At 24 he defends with real confidence. He is happy to sit behind a compact setup with ...e6, ...d6, ...Nf6 and ...Be7, letting White burn energy, and he finds the unexpected move that blunts an attack more often than you would like. What troubles him is the d-file. His d6 pawn is backward and easy to target, and when he cannot finish development because that pawn needs constant protection, his king can get stuck in the centre for longer than he would like.
At 2286 ELO, Jin plays at master strength. Outright blunders are rare, so you need a sound opening, a clear plan and accurate calculation in sharp moments. A draw against him is a good result; a win means you played a very good game.
Jin plays the Black side of the Smith-Morra Gambit: after 1.e4 c5 2.d4 cxd4 3.c3 they take the pawn with ...dxc3 and then develop with ...Nc6, ...d6, ...e6 and ...Nf6. Black keeps the extra pawn and tries to survive White's lead in development.
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 e6 7.O-O Nf6 8.Qe2 Be7
Learn it move by move: Smith-Morra Gambit walkthrough
Jin teaches gambit discipline: knowing which targets justify the material you gave up, and when to stop attacking and take the pawn back.