The story of the game

James, this is a good win that splits neatly in two. From move 10 onward you played the game your training notes have been asking for: a well-timed pawn break, an instant cash-in when the file opened, clean simplification while ahead, and an engine-best deflection to win the queen — finishing in a position where mate was already forced. Before move 10, though, one pawn sat undefended for three consecutive turns and never got taken. The engine's only real complaints about your play are 4.e3, 5.cxd5 and 6.d4 — three developing moves played while 4.Nxe5 was worth more than a pawn. The whole review of your side of this game is: same scan, earlier.

The key moments

Move 4 — e5 is free, and stays free. After 3...c6 (already ?!), ask what the move stopped doing: ...c6 spends the b8-knight's natural square, so e5 has no defender coming. 4.Nxe5 just wins it — the engine gives +1.3 after 4...Bb4 5.a3 Bxc3 6.bxc3 O-O 7.Nf3 d6, when Black has nothing concrete for the pawn. You played 4.e3, and the chance repeated: even after 4...d5 and 5.cxd5 cxd5, 6.Nxe5! still works — the point is 6...Bd6 7.Qa4+! (this zwischenzug is the move to remember: it covers the regain attempts) 7...Nbd7 8.Nxd7 Bxd7 9.Bb5, and White carries the extra pawn into any ending. Instead 6.d4 let 6...e4 hit your knight and clamp the position; from ~+1.1 you were down to dead level, and for a while Black was the comfortable side.

Move 10–12 — the break and the cash-in. This was excellent. In the French-reversed structure after 7.Nd2 Nc6 8.Be2 Bd6 9.O-O O-O, 10.f3 is the right lever at the right moment. After 10...Bf5 11.fxe4, your opponent auto-recaptured 11...dxe4?? — and you punished it instantly with 12.Rxf5, winning a clean piece (Black's win chances drop 52% → 17%). The tactical geometry: the pawn recapture opened the f-file, and the bishop on f5 was loose. Only 11...Bxe4 held — 12.Ndxe4 Nxe4 13.Nxe4 dxe4 is level. Note the engine would even have kept your rook forward after 12...Re8 with 13.Rxf6! gxf6 14.Ndxe4, wrecking the king — but your 13.Rf2 after 12...Qd7 was completely clean: piece up, no counterplay allowed.

Move 22 — the deflection. After 16.Nxd6 Qxd6 you spent moves 17–20 (17.Qf1, 18.Bc4, 19.Bd3, 20.Rf5) harassing the queen — and that pressure manufactured the weakness: 20...g5 blocked the rook's attack on h5 but fatally loosened the king. 21.e4 was a fine quiet move (it defends the f5-rook, so 21...Nxd4 attacked nothing real), and then 22.Rxg5+! is the engine's first choice by a wide margin (+6.5): remove the blocking pawn with check, and every reply loses the queen — 22...Qxg5 23.Bxg5 as played, 22...Qg6 23.Rxg6+ hxg6, or 22...Kh8 23.Rxh5. Your c1-bishop never moved all game and still decided it. The mop-up (24.Bf4, 25.Bxc2, 26.Bxe5) was accurate, and after 27.Bf6 the final position is mate in six — Black's 27...Rxb2 gets recaptured as move one of the mate. Resignation was the sane choice.

Phase notes

• Opening — fix: your English move order was fine through move 3; the leak was three "developing" moves while a pawn hung. Add the ...c6 lines to your repertoire notes: against 1.c4 e5 setups, when Black plays an early ...c6, check Nxe5 immediately — and keep the 7.Qa4+ resource in your pocket. Separately, know that 6.d4 in this structure invites ...e4 with tempo; if you don't want the French-reversed clamp, that's another reason the capture was the move.
• Middlegame — keep: break timing (10.f3), file-opening tactics (12.Rxf5), simplifying while up material (14.Ndxe4, 16.Nxd6), and converting harassment into weaknesses (moves 17–20). Zero flagged moves from you after move 6.
• Attack/ending — keep: 22.Rxg5+ shows you calculating forcing lines instead of banking material passively, and you kept enough force on the board to mate. Exactly the "Mode 2" balance you've been drilling.

Profile check

• Mode-locked tunnel vision (master key #2): this game is a textbook specimen — the free pawn was invisible for three moves while you were in development mode, which your notes literally predict: "danger spikes exactly when it feels like 'just developing.'" The Captures–Checks–Threats scan has to fire on move 4 of a quiet English, not just in sharp middlegames.
• The greed ledger, right side of it: your fire alarms warn about your queen grabs on b2/d4; here your opponent did the grabbing (21...Nxd4, 27...Rxb2 — the second one stepping into the mate) and you responded by ignoring the bait and striking. That's the discipline working in both directions — though note the irony that the safe grab (Nxe5, a knight, fully calculable) was the one you skipped.
• Simplify when ahead: landed again, now in rapid — trades at 14–16, no drama, no "up material but airy king" moments. Keep it.
• Pessimism (master key #1): untested here — you were never worse. No data.

What to drill next

1. The "what did that move stop defending?" scan — after every opponent move, before thinking about your plans, name what it abandoned. Do 20 Lichess puzzles on the hanging piece theme at fast pace (spot in under 10 seconds) to make it reflexive, then carry it into your next three rapid games with a hard rule: no developing move until the capture check is done.
2. Repertoire patch (15 minutes with a board): the King's English with an early ...c6 — play out 4.Nxe5 and the 6.Nxe5 Bd6 7.Qa4+ line until the regain attempts are familiar, so next time the capture is theory, not courage.
3. Deflection/removing-the-guard set: you found 22.Rxg5+ over the board — lock the pattern in with 15 puzzles on the deflection theme so it costs you seconds, not minutes, next time.