Kuba - The Chess Cell Specialist
Meet Kuba, also known by the intriguing username Rozpruwazc, a rapid chess enthusiast with a reputation for making opponents feel like they've been dissected under a microscope. With a steady ascent in rapid ratings from 1243 in 2021 to a sparkling 1316 by 2025, Kuba’s growth curve is as smooth and fascinating as mitosis itself!
Kuba's rapid game DNA reveals a predilection for the Queen's Pawn Opening, where he’s played an impressive 848 games, boasting a win rate of over 52%. Not far behind is his favorite variant, the Queen's Pawn Stonewall Attack and the Horwitz Defense, demonstrating that Kuba is as versatile as an enzyme adapting to new substrates.
Despite a blitz rating that’s still in its infancy (currently at 1050 with room to grow), Kuba’s rapid chess repertoire compensates with a high endgame frequency of 61.66%, proving that Kuba isn’t just about quick tactical strikes but thrives in the slow grind of cellular division—er, I mean, positional play! His average moves per win near 63 suggest deep, methodical thinking akin to a biologist meticulously charting a cell’s lifecycle.
Psychologically, Kuba shows great resilience with a remarkable 76.34% comeback rate and a near-perfect 100% win rate after losing a piece, much like a clever virus managing to turn the tables despite being initially suppressed. However, beware opponents prone to 'tilt'—Kuba’s tilt factor is 9, indicating a modest flare-up of fiery passion when the game tides turn unexpectedly.
When it comes to time preferences, Kuba seems to be at the peak of his circadian rhythm between midnight and noon, achieving a win rate peaking at 75% at 10 AM and a bright 66.67% at 4 AM—clearly a creature of both night and day, much like those fascinating nocturnal critters biologists love to study.
With a fighting spirit as contagious as the common cold and a strategic genome marked by endurance and adaptability, Kuba is a player who proves that in the ecosystem of chess, evolution favors the persistent. Expect many more chess cells to divide under Kuba’s watchful eye!
Quick summary
Kuba — nice run of games recently. Your last few wins show good attacking sense, piece activity and an eye for tactical breaks. The loss exposed a recurring practical danger: king safety / back-rank and coordination problems when the position opens. Below I highlight the concrete patterns you used well, the recurring weaknesses, and an actionable practice plan you can start this week.
What you did well (repeatable strengths)
- Active piece play: you create targets and get rooks/queen onto invading files (examples: the game where you finished with a queen sac on d7 after pushing the c-pawn).
- Pawn breaks to open the position — you timed pawn advances (a and c pushes) to create open lines for your pieces.
- Willingness to simplify or trade into winning endgames — you convert advantages instead of overcomplicating (see several resignations/time wins).
- Good conversion instincts in tactical middlegames: once the opponent’s king becomes short of squares you find forcing continuations quickly.
Main things to fix (high impact)
- King safety / back-rank awareness — your loss came after rook exchanges left your king with no flight squares and the opponent delivered Qe6# quickly. Always check for opposing mating ideas before simplifying on the back rank.
- Loose coordination when defending — avoid passive moves that block the king’s escape (rooks doubling on the back rank can be helpful or harmful depending on a luft).
- Tactical oversights in sharp positions — continue tactics training focused on pins, sacrifices that expose the king, and quiet intermezzi (zwischenzug) that change the evaluation.
- Opening familiarity vs unusual responses — you play many system-like setups (Stonewall / English / Amazon Attack family). When the opponent deviates early, have one or two concrete plans instead of waiting for the position to come to you.
Concrete next steps (weekly plan)
- Daily (15–25 minutes): tactics puzzles — concentrate on back-rank mates, forks, pins and discovered attacks. Goal: 20 focused puzzles every day, review mistakes.
- 3× per week (30 minutes): one slow game review — pick a recent win and the loss. For each, write the three critical moments and what you expected vs what happened. Use the examples below.
- 2× per week (20 minutes): endgame drills — basic king + rook vs king, Lucena, and simple pawn races. These improve conversion and defense when material is reduced.
- Opening work (2 sessions/week, 30 min): pick your 2 most-used systems (you do well in Amazon Attack / Stonewall-type systems). Deepen one line and learn one sensible reply to the opponent’s most common deviations. Make a 1–page cheat sheet with a plan for move 10 and move 20 in each line.
- Monthly checkpoint: review your 30 most recent rapid games and note recurring tactical miss types (pins, back-rank, overloaded pieces). Target that specific pattern until it stops appearing.
Practical in-game checklist (before you hit the clock)
- Have I left my king any escape squares? (If not, is that safe?)
- Does my opponent have any forcing checks or captures that change the position drastically?
- Which pieces are unprotected or overloaded this move?
- Is there a simple active plan (improve a piece, open a file, create a passed pawn)?
Concrete lessons from your recent games
- Win (2025-11-23 vs Felarett): your a- and c-pawn advances created open lines and a passed pawn — then you used queen infiltration to finish. Lesson: when you open files, coordinate queen + rooks to invade; a well-timed pawn push (c6 in that game) can be decisive. English Defense
- Loss (2025-11-22 vs Makuhari01): after rooks were exchanged you were mated on e6. The critical error was not ensuring flight squares for your king and letting the opponent keep attacking pieces active. Lesson: when exchanging near the enemy king, check for back-rank and mating patterns first.
- Win (2025-11-20 vs SamgarGoodarzar): you used rook swings and pawn advances to force winning simplifications. Lesson: active rooks on the seventh and creating passed pawns win games — keep practicing rook activity and king hunts in the middlegame.
Illustrative game (review this with a coach or in analysis)
Study the decisive win where you finished with queen to d7 mate — replay it and annotate the turning points:
Opening advice (keep / tweak)
- Keep playing your system openings — they suit your style (you create imbalances and targets). Focus study time on typical middlegame plans, not every sub-variation.
- If you want a quick improvement in your loss-prone lines (e.g., some French positions), learn one safe plan to reach comfortable middlegames rather than trying to memorize long theory.
- Use one-line cheat-sheets: for each opening you play, write 6–8 moves + 2 typical plans for both sides. This reduces time trouble and guesswork in rapid games.
Short-term metrics to track (next 30 days)
- Daily tactics streak (target 20/day) — track percent correct.
- Number of games where you spot back-rank threats before moving (goal: 90% of games).
- One opening cheat-sheet completed and used in at least 10 games.
If you want, I can...
- Walk through the 11/23 win move-by-move and point out alternative defenses for Black (I can annotate the PGN with comments).
- Build a 2-page opening cheat-sheet for your favorite system (you name the system: Stonewall Attack or Amazon Attack).
- Create a 4-week training plan tailored to your schedule (tactics + endgames + two opening sessions a week).
Final encouragement
Your recent +43 rating last month shows you’re doing things right. Keep reinforcing the strengths above, plug the king-safety holes, and dedicate short, focused sessions to the patterns I listed — you’ll see that 1–2 small habits (back-rank checks and a tactic drill routine) will turn many close losses into wins.
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| felarett | 1W / 0L / 0D | View |
| makuhari01 | 0W / 1L / 0D | View |
| makh1977 | 0W / 0L / 1D | View |
| samgargoodarzar | 1W / 0L / 0D | View |
| kovirjaka | 1W / 0L / 0D | View |
| yantoml | 1W / 0L / 0D | View |
| ajg1511 | 0W / 1L / 0D | View |
| threat2all | 0W / 1L / 0D | View |
| blunder_mastersa | 0W / 1L / 0D | View |
| y0jan1009 | 0W / 1L / 0D | View |
| Most Played Opponents | ||
|---|---|---|
| nahid1469 | 4W / 1L / 0D | View Games |
| josedacostapereirane | 2W / 1L / 1D | View Games |
| agusmusick | 2W / 0L / 1D | View Games |
| ggaclb | 3W / 0L / 0D | View Games |
| thisisandy | 2W / 1L / 0D | View Games |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 1235 | |||
| 2024 | 1283 | |||
| 2023 | 1050 | 1167 | ||
| 2022 | 1224 | |||
| 2021 | 1243 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 103W / 92L / 5D | 90W / 107L / 9D | 64.3 |
| 2024 | 131W / 132L / 5D | 139W / 118L / 9D | 64.6 |
| 2023 | 281W / 243L / 20D | 243W / 286L / 17D | 66.2 |
| 2022 | 263W / 229L / 21D | 240W / 270L / 8D | 62.6 |
| 2021 | 197W / 197L / 17D | 191W / 208L / 8D | 62.4 |
Openings: Most Played
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Amazon Attack | 1274 | 660 | 571 | 43 | 51.8% |
| Philidor Defense | 485 | 215 | 257 | 13 | 44.3% |
| Australian Defense | 334 | 167 | 156 | 11 | 50.0% |
| French Defense | 178 | 80 | 89 | 9 | 44.9% |
| London System: Poisoned Pawn Variation | 138 | 64 | 69 | 5 | 46.4% |
| Amazon Attack: Siberian Attack | 129 | 56 | 68 | 5 | 43.4% |
| Barnes Opening: Walkerling | 106 | 53 | 51 | 2 | 50.0% |
| French Defense: Advance Variation | 103 | 53 | 50 | 0 | 51.5% |
| Amar Gambit | 88 | 49 | 39 | 0 | 55.7% |
| Bishop's Opening | 85 | 32 | 51 | 2 | 37.6% |
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| London System: Poisoned Pawn Variation | 1 | 0 | 1 | 0 | 0.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 11 | 1 |
| Losing | 9 | 0 |