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Quick summary

Nice work — you’re winning messy, tactical games and exploiting opponents’ mistakes. Your opening choice (a lot of Nimzo‑Larsen / flank systems) is giving you practical chances. At the same time you lose a lot of games to tactical blows and king‑side attacks. Small, repeatable fixes will give the biggest rating uplift in blitz.

What you're doing well

• You punish early queen/king exposures: your win vs aiacaiac shows good instinct to hunt the weakened king and convert to mate.
• Good opening familiarity — long sample of Nimzo‑Larsen lines where you reach playable middlegames (your overall opening WinRate is solid).
• Active piece play: you look for checks, captures and forcing moves rather than passivity, which is ideal in blitz.
• Practical conversion: when you win material you tend to simplify and finish the game instead of letting counterplay revive.

Main patterns causing losses

From the recent losses there are recurring tactical and positional themes to fix:

• Knight invasions and forks on f2/e3 — many opponents score by jumping into your camp. Before committing pawns or castling, check for those jumps.
• Pieces left undefended / hanging after pawn advances — pushing pawns around your king (or on the queenside) created loose pieces that were targeted.
• Back‑rank and mating threats — late in games you sometimes allow decisive checks or back‑rank motifs; keep one escape square or a luft for the king. See back rank.
• Time pressure errors — clock traces show you reaching very low time on decisive moves. Blitz blunders multiply when the clock is in single digits.

Concrete fixes (apply these next session)

• Before every move in blitz ask two short checks: "Is any piece attacked?" and "Are there knight forks or checks I must stop?" — this habit cuts most hanging‑piece blunders.
• King safety rule: if you castle short, avoid pushing the front pawns (f/g/h) unless you calculated the tactical consequences. If you castle long, be careful about opposite‑side pawn storms.
• Trade or guard pieces when opponent threatens forks (keep a defender on squares like f2, e3, d2 in your lines).
• Manage time: aim to keep 10–20 seconds on your clock on every move before move 20. If you’re under 10s, switch to simpler, safer moves — avoid speculative sacrifices when low on time.
• Opening: keep the main plans for your favorite systems (pawn breaks and where the knights like to jump). Drill the common counters: ...Nc6, ...Ng4, ...Nf2 jumps — memorize one safe response to each.

Short training plan (30 minutes/day)

• 10 minutes tactics — focus on forks, pins, skewers and discovered attacks. Look for puzzles that finish with a king‑side fork or tactical win.
• 10 minutes endgame basics — king + pawn vs king, basic rook endgames and avoiding back‑rank traps. These translate directly to converting wins and surviving attacks.
• 10 minutes opening review — pick one recurring line (for you: Nimzo-Larsen Attack). Learn the typical plans and 3 responses to the most annoying black setups (…Nc6, …Ng4, …Nf2 motifs).

Blitz checklist (stick to this during games)

• Always scan for checks and captures before you move.
• If down material, look for a tactical resource; if ahead, trade to reduce counterplay.
• When low on time (under 10s), simplify: exchange pieces and make safe waiting moves.
• Before castling or pawn storming, check opponent knight squares (f2, e3, g4, h3).

Example positions to review

Review these themes in your recent PGNs:

• Opponent queen excursions and your mating nets (learn why the mate was allowed and how you built it).
• Games where the opponent played Ne3+ / Nf2 patterns — ask: what square was left undefended and how to stop the jump earlier?
• Positions that ended with a decisive rook/queen invasion — practice defending the back rank and giving luft.

Next steps & resources

• Revisit 5 most recent losses with an engine or stronger player: identify the one move where the evaluation swung and memorize the correct plan.
• Keep doing blitz but add 1–2 slow games per week (10+0 or 10|5) to practice deeper tactical calculation and endgame technique.
• Study one thematic lesson on tactic motifs (forks/pins) and one on back rank defense — then apply them immediately in blitz.

When you want, paste one game you lost where you felt confused and I’ll give move‑by‑move suggestions for the turning point.

Quick encouragement

Your recent trend shows big improvement (positive slopes and a rising 3–6 month trend). Keep the focused practice above and those small, repeatable habits will turn more games into wins.