Tito from the Square
The Block's Sharpie
Rival ChessChess. Rivals. Your next level.
Become the Interplanetary Champion.
Eight championships. Fifty-six rivals. One goddess at the end.
Your first championship is free.
01Tito from the Square
05The National Champion
08Caïssa, The Eternal
Street Championship
Street ChampionshipInterplanetary Challenge
- 01Street Championship
- 02Neighborhood Championship
- 03City Championship
- 04State Championship
- 05National Championship
- 06Continental Championship
- 07World Championship
- 08Interplanetary Challenge
New · Lichess and Chess.com
Your online games become your training.
Link your public Lichess or Chess.com username. With one tap, Rival imports your recent games, analyses them on your device and turns your mistakes into drills against a rival at your level.
- 1Link your public username. No password.
- 2Import your recent games with one tap.
- 3Replay your own mistakes until you get them right.
Import and preview for free. Training these drills is part of Lifetime: one payment, no subscription.
Public data only. We never ask for your password.
Your online games
All caught up · imported at 05:03 PM
Drills from your online games: 2
Train my online drills
Lichess game · 3+2 · Oct 17
- 7. dxe5 · Middlegame
- 40. Rd7 · Endgame
The climb
From the Street to the World — and beyond.
Eight championships, seven rivals each. Win one, advance to the next. Anyone can start. Only you can finish.
01 / 08Free
Street Championship
Where it all begins.
Rivals await
The title at stake
Street Champion
The final rival
The King of the Block
Fifty-six characters
Every rival has a name. A face. A reason to be on your board.
Tito from the Square to Caïssa, the eternal — each opponent is hand-written, calibrated, and waiting for you on the next floor.
01 · Street
Grandma Mary
The Afternoon Grandma
Big Marc from the Pub
The Table Owner
Larissa Afternoon
The Calculator
Old Joel
The Street Veteran
Casey
The Hustler
BossThe King of the Block
The King of the Block
02 · Neighborhood
Pete from the Salon
The Host
Aunt Cida
The Retired Teacher
Bruno the Barber
The Easygoing Barber
Julia the Critic
The Critic
Old Aldo from the Bar
The Silent Host
Manny from the Bakery
The Dawn Baker
BossThe Colonel
The Colonel
03 · City
Carla from the Café
The Online Barista
Rod the Engineer
The Engineer
Dr. Helena
The Surgeon
Ed the Director
The Director
Lila the Student
The Club President
Master Tony
The Serene Master
BossThe Dean
The Rector
04 · State
Phil the Prodigy
The Prodigy
Mariana Strong
The Southern Force
Rick the Tactician
The Tactician
Sophie Positional
The Strategist
Henry the Veteran
The Multi-Champion
Bea Endgame
The Endgame Master
BossThe State Champion
The Reigning Champion
05 · National
GM Ronaldo
The National Grandmaster
IM Camila South
The International Master
Master of Defense
The Defender
Renata the Gambler
The Gambit Queen
Old Master Carlos
The Living Legend
GM Ana Tactics
The Tactical Mistress
BossThe National Champion
The National Champion
06 · Continental
Sergio Buenos Aires
The Argentine Tiger
Yuki Tokai
The Pacific Master
Akin Lagos
The Lion of Lagos
Eleni Athens
The Philosopher
Wang Shanghai
The Shanghai Strategist
Sophia Berlin
The Theoretician
BossThe Continental Champion
The Continental Champion
07 · World
Magnus Borealis
The Northern Genius
Andrei Sturm
The Russian Storm
Esmé Vidal
The Hungarian Legend
Vincent Halloway
The American Loner
Vishwa Iyer
The Indian Tiger
Liszt Romanov
The Constrictor
BossAleksandr Dvořák
The World Champion
08 · Interplanetary
The Watcher of Caïssa
The Eternal Watcher
The Glass Knight
The Glass Knight
Echo Prime
The Echo
Vyrael the Patient
The Patient One
The Nebula Queen
The Nebula Queen
The Architect
The Architect
BossCaïssa, The Eternal
Caïssa, The Eternal
Each character carries their own opening, their own tells, and their own taunt when they beat you.
The first move
Every journey begins with someone.
My grandfather taught me to play. His dream stayed with me. Now, it’s my turn.
Watch the story12 sOur own models. Built and trained in-house.
Real games. Real timing. Real climb.
The network that chooses your opponent's moves is ours — we designed it, we trained it, we own it. Not a licensed model. Not an off-the-shelf engine turned down to feel weaker. Trained on millions of real human games, and it runs entirely on your device.
🧠
One proprietary network, every level
A single neural network of our own, conditioned on rating — trained on millions of real human games, covering 600 to 2699. Your rival at 1200 plays like a 1200. At 2200, like a 2200.
⏱️
5.6M moves modeled
Bot pacing is an XGBoost model trained on 5.6 million Lichess moves. Eleven features — eval, ply, time pressure, threats. Your opponent thinks the way a human at that level thinks.
🎯
Drills from your own games
Statistical win-probability-loss extraction picks the moments you actually fumbled. The drill replays it against a rival at your level, with an Elo-scaled difficulty window. No generic puzzles.
100% on-device. No accounts required to play. No server round-trips during a game.
How a match works
Pick a rival. Win. Climb.
No leaderboards, no chase. The board is between you and the next character on the floor.
- 0101 · Pick
Choose a championship
Eight tiers, seven floors each. Start at the street. Your save remembers the next door.
- 0202 · Fight
Sit across a real character
A proprietary neural network conditioned on rating, trained on millions of human games. Each rival's style, pace, and voice match the level they represent.
- 0303 · Climb
Beat them, the next door opens
Lose and you replay the same floor. Win and you climb. Boss at slot seven. New championship after.
No matchmaking. Pick your fight, climb the next floor. Every opponent's pace and style is driven by our own ML, not weakened in real time — fully baked, fully theirs.
Optional sharpening
Drills, if you want them.
The climb doesn't require them. But if a rival keeps beating you, every loss becomes a drill — phase-tagged, replayable, framed exactly like your real game.
- Your real blunders become missions — no puzzle hunting.
- Replay against a rival at your level — the same proprietary opponent net tuned to your bracket.
- Skip the drills entirely and you can still beat the whole circuit.
Three master coaches
Find your mentor.
The Old Man is free. Lifetime unlocks all three mentors immediately, from the start.
Drills are how you get better. The climb is why.
Insights
Discover your next focus. Train with positions from your own games.
Understand your results in plain language, revisit your mistakes and follow your progress. Insights and practice are free; Lifetime opens the full journey.
Insights
Last 30 days · Sep 11 – Oct 11
Illustrative example
Your results
48
Games
- 24 Wins
- 19 Losses
- 5 Draws
50%
Win rate
+5 percentage points · 45% in the previous 30 days
Your next focus
Middlegame
29 blunders and 122 mistakes in 1,373 moves.
The phase with the highest blunder rate. Based on at least 3 games and 30 moves.
Train my middlegame mistakes8 positions from your games ready to practice
Your game by phase
704
Strong moves
122
Mistakes
29
Blunders
1,373 analyzed moves
2.1% of your moves had a blunder.
Move counts cover 48 of 48 games in this period.
Worth reviewing
Bishop’s Opening
9 losses in 12 games
Endgames with ≤6 pieces: 1 blunders across 3 games.
An opening identifies the games to review; it does not explain why they were lost.
Your practice
437 drills mastered
Across your full history
74 positions practiced in the last 7 days
- 12Mon
- 7Tue
- 14Wed
- 11Thu
- 6Fri
- 18Sat
- 6Sun
Last practice
Pricing
Unlock the full climb.
Reach Caïssa. One-time payment, no subscription.
Free
$0
No signup, no card.
One full championship. Unlimited.
- 7 rivals in the first championship (the Street)
- Unlimited play, unlimited rematches
- Unlimited drills with 1 coach (The Library Sage)
- Caïssa and 7 championships locked
Lifetime
$8
One-time payment. Yours forever.
All 8 championships. All three master coaches. The climb to Caïssa.
- 49 new rivals across 7 championships
- The climb to Caïssa, the goddess of chess
- Master Helena trains you after the City
- Sensei trains you after the World
- One-time payment — yours forever
$8 USD globally. R$ 39 on Brazilian stores. Purchases handled by Apple / Google.
Start the climb
For the promise. For the family.
Eight championships are waiting. The first one is yours, free, today.
Available on the App Store and Google Play.