Overview
Ivan Kalajzic (aka Kale36) is a fierce Candidate Master with a reputation as a blitz specialist. A strategist who prefers the thrill of the clock, Ivan built his name online and over-the-board playing aggressive, creative chess with an uncanny knack for late-comeback tactics. This profile highlights his style, repertoire, and the little quirks that make him memorable to opponents and fans alike.
Preferred time control: Blitz — expect frantic tactics, quick sacrifices, and the occasional resignation offered with a smile.
Quick snapshot: 2649 (2025-09-25) • Rating trend:
Career Highlights
Ivan earned the FIDE Candidate Master title and has been particularly dominant online in fast time controls. He regularly competes in high-volume blitz and bullet events and has racked up long win streaks and dramatic reversals that make highlight reels — if only someone would make them.
- Known for long tournament runs and deep experience in high-frequency blitz matches.
- Strong track record against a rotating pool of top opponents; frequently meets competitive players like honorthehawk and tomcat1603.
- Notable peak performance in recent seasons showcased his adaptability across time controls.
Playing Style & Psychology
Ivan blends hyper-tactical bursts with surprisingly patient endgame technique. He often prefers to steer games into messy, dynamic positions where his tactical awareness shines. The scoreboard and habits say a lot:
- Style: Tactical opportunist who loves complications and tricky imbalances.
- Endgame frequency: Frequently carries games deep — comfortable in long endgames.
- Psychology: Can mount big comebacks; handling of tilt is a known area of human improvement (tilt factor — a real thing).
Openings & Repertoire
Ivan’s opening choices are eclectic but effective. He returns again and again to offbeat, surprise-first-move systems that often take opponents out of book quickly.
- Favorite starting systems: Nimzo-Larsen Attack (a staple), Barnes Defense, and the versatile Modern setup.
- Ambitious choices: Amazon Attack and Amar Gambit appear frequently — Ivan enjoys positions that punish passive play.
- As Black, he mixes active defenses and tactical sidelines to avoid heavy preparation wars.
Sample opening sequence (small taste of the Nimzo-Larsen flavor):
Notable Streaks & Records
- Longest winning streak: 20 games — a run that left many opponents convinced the time control was haunted.
- Resilience: strong comeback rate — often converts difficult positions into wins.
- Frequent rivals include: honorthehawk, tomcat1603, Toomas Valgmae — matches against them are tactical and entertaining.
Practical Tips from Kale36
For those seeking to learn from Ivan’s approach:
- Embrace offbeat openings to take opponents out of their comfort zone early.
- Practice time-pressure tactics — Ivan’s advantage often grows as the clock dwindles.
- Develop a patient endgame mindset; many of his wins arrive after 60+ moves.
Personal Notes & Fun Facts
Ivan is as human as his blunders: he drinks terrible coffee during long sessions, delights in cheeky sacrifices, and once offered a draw while up an exchange "just to be polite." If chess had a comedy hour, he'd be a headliner.
- Username: Kale36 — the handle that many opponents groan at seeing on the pairings sheet.
- Best time to play him: late-night sessions (Ivan does his best work near midnight).
- Placeholder for deeper dives: explore favored openings like Nimzo-Larsen Attack and Barnes Defense to catch his style in the wild.
Want to Study a Game?
Here’s a compact example demonstrating early wing play, tactical skirmishes, and a brave endgame push — perfect for players who want to learn practical blitz decision-making.
Hi Ivan — short, practical read
Good stretch of blitz: you create active chances, push passed pawns and win sharp games. Your 6‑month trend and recent +73 rating change show clear progress. Below are focused, actionable points to convert more wins and cut down on avoidable losses.
What you're doing well
- Active piece play — you consistently bring rooks and queens to the opponent’s back rank and generate threats.
- Pawn play and breaks — the c‑ and b‑pawn advances in recent wins show good understanding of passed‑pawn play.
- Opening surprise value — your varied repertoire (e.g. Nimzo-Larsen Attack) gets opponents out of book and into unbalanced positions.
- Practical persistence — you keep the clock moving and pressure opponents, which produces wins (including by flag occasionally: Flagging).
Recurring issues to fix
- Time management: several decisive games get decided in the last 30 seconds. Improve how you budget early moves so quality doesn't collapse at the end.
- King safety & back‑rank: your recent loss ended in a mating sequence. Guard against back‑rank mates when queens and rooks are active.
- Piece coordination: a few games show loose pieces and missed defensive resources — tighten how you regroup after exchanges.
- Converting advantages: you often create imbalances but then miss the simplest path to a won endgame; aim to simplify correctly when ahead.
Daily & weekly improvement plan
- Daily (15–20 min): tactics trainer focused on mates, back‑rank motifs, forks and pins. Do sets with increasing difficulty until you hit a target (e.g., 10/12 correct).
- 3×/week (30–45 min): one slow training game (15+10 or 30+0) followed by a 10–15 min post‑mortem. Mark 3 turning points and alternative moves.
- 2×/week (20 min): endgame drills — rook vs rook + pawn, basic king + pawn endings, and forced mate patterns to remove back‑rank weaknesses.
- Weekly blitz block (1 hour): play 20 blitz games but enforce a strict internal rule — no premoving when under 10s left; focus on clean, practical moves.
In‑game checklist (use every game)
- Turns 10 and 20: check opponent threats and your king safety. If anything is loose, neutralize it (trade or cover).
- If you're up material: simplify safely — trade queens/rooks and aim for a known winning endgame instead of hunting complications.
- If under 30 seconds: switch to a “safety protocol” — play checks, captures and forcing moves; avoid long calculations.
- Before any queen trade: verify there is no back‑rank or rook infiltration that gives counterplay.
Small technical fixes (quick wins)
- Adopt a 30s rule: when you drop below 30 seconds, stop premoves and only play simple, forcing moves.
- Memorize 5 defensive patterns against common mating nets (back‑rank, rook lift, mating squares around the king).
- When winning, keep one waiting move in your pocket to avoid tactical surprises — a calm prophylactic move often wins the game.
Study target — the recent loss vs juriko
Replay the finish of that game on your site and ask: where was the king exposed and when could you have reduced the queen/rook activity? The mate came from a coordinated queen invasion after several exchanges — a good lesson in trade timing and king sheltering.
If you like, I can annotate that game move‑by‑move and highlight three concrete turning points you can work on.
Two‑week mini plan
- Week 1: 10 consecutive days of tactics (15m/day) + three slow games with post‑mortems.
- Week 2: endgame focus (rook + pawn basics) + one longer training match to practice converting advantages.
- Goal: reduce time losses and cut tactical misses in the first 20 moves — measure by comparing mistakes in next 50 blitz games.
Want targeted help now?
- Pick one game (for example vs Kevin Davidson or juriko) and I’ll deliver a 3‑point annotated post‑mortem: turning moves, missed tactics, and a clear plan to avoid the same error.
- Your Strength Adjusted Win Rate (~50%) shows small, consistent improvements will yield big rating gains — tighten clock play and the rest follows.
Short encouragement
Your long‑term curve is very promising. Keep the tactical practice and tighten time management — you’ll convert unstable wins into stable, repeatable wins. Ready to pick a game for deeper analysis?
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| clandestinewarmaster | 1W / 1L / 0D | View |
| jgt64 | 2W / 5L / 0D | View |
| Akeem Brown | 0W / 5L / 3D | View |
| Mohsen Ghorbani | 4W / 5L / 1D | View |
| acebonaventura | 1W / 0L / 0D | View |
| Areg Shmavonyan | 2W / 0L / 0D | View |
| Luis Galego | 3W / 8L / 0D | View |
| 123iambob123 | 1W / 0L / 0D | View |
| demanding_bear | 0W / 3L / 1D | View |
| rubi2211 | 1W / 0L / 1D | View |
| Most Played Opponents | ||
|---|---|---|
| honorthehawk | 34W / 16L / 3D | View Games |
| tomcat1603 | 27W / 16L / 7D | View Games |
| Toomas Valgmae | 15W / 30L / 4D | View Games |
| cruz29 | 17W / 25L / 5D | View Games |
| ugetting | 26W / 19L / 2D | View Games |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2335 | 2606 | ||
| 2024 | 2382 | 2310 | 2257 | |
| 2023 | 2252 | 2342 | 2255 | |
| 2022 | 2141 | 2422 | ||
| 2021 | 2119 | 2320 | ||
| 2020 | 2203 | 2221 | ||
| 2014 | 2110 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 4446W / 4723L / 850D | 4226W / 5024L / 790D | 82.5 |
| 2024 | 1476W / 1522L / 286D | 1386W / 1634L / 251D | 81.2 |
| 2023 | 2109W / 2062L / 460D | 2027W / 2186L / 431D | 84.5 |
| 2022 | 1504W / 1309L / 239D | 1456W / 1332L / 219D | 80.1 |
| 2021 | 1912W / 1805L / 371D | 1841W / 1893L / 369D | 83.5 |
| 2020 | 187W / 130L / 35D | 164W / 169L / 29D | 79.2 |
| 2014 | 526W / 472L / 82D | 506W / 482L / 71D | 79.9 |
Openings: Most Played
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Nimzo-Larsen Attack | 5611 | 2550 | 2497 | 564 | 45.5% |
| Barnes Defense | 5003 | 2249 | 2334 | 420 | 45.0% |
| Australian Defense | 3293 | 1427 | 1571 | 295 | 43.3% |
| Amazon Attack | 2154 | 1000 | 961 | 193 | 46.4% |
| Modern | 955 | 440 | 433 | 82 | 46.1% |
| Caro-Kann Defense | 834 | 355 | 403 | 76 | 42.6% |
| Colle System: Rhamphorhynchus Variation | 785 | 343 | 366 | 76 | 43.7% |
| French Defense: Burn Variation | 759 | 376 | 310 | 73 | 49.5% |
| Amar Gambit | 732 | 318 | 350 | 64 | 43.4% |
| Amazon Attack: Siberian Attack | 729 | 316 | 340 | 73 | 43.4% |
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Nimzo-Larsen Attack | 5586 | 2577 | 2585 | 424 | 46.1% |
| Barnes Defense | 3212 | 1399 | 1583 | 230 | 43.6% |
| Australian Defense | 1907 | 824 | 935 | 148 | 43.2% |
| Colle System: Rhamphorhynchus Variation | 977 | 396 | 519 | 62 | 40.5% |
| Amar Gambit | 894 | 411 | 420 | 63 | 46.0% |
| Nimzo-Larsen Attack: Classical Variation | 878 | 377 | 420 | 81 | 42.9% |
| Amazon Attack | 636 | 263 | 330 | 43 | 41.4% |
| English Defense: Blumenfeld-Hiva Gambit | 570 | 313 | 233 | 24 | 54.9% |
| Modern | 514 | 223 | 256 | 35 | 43.4% |
| Benoni Defense: Benoni Gambit Accepted | 353 | 160 | 175 | 18 | 45.3% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Amazon Attack | 24 | 13 | 8 | 3 | 54.2% |
| Barnes Defense | 23 | 13 | 7 | 3 | 56.5% |
| Nimzo-Larsen Attack | 19 | 5 | 10 | 4 | 26.3% |
| Australian Defense | 14 | 5 | 7 | 2 | 35.7% |
| Modern | 14 | 8 | 5 | 1 | 57.1% |
| Caro-Kann Defense | 9 | 4 | 2 | 3 | 44.4% |
| Benoni Defense: Old Benoni | 9 | 4 | 4 | 1 | 44.4% |
| Sicilian Defense | 8 | 5 | 3 | 0 | 62.5% |
| QGD: Chigorin, 3.cxd5 | 7 | 4 | 3 | 0 | 57.1% |
| Vienna Gambit, with Max Lange Defense | 5 | 2 | 1 | 2 | 40.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 20 | 2 |
| Losing | 12 | 0 |