Sparring partners

Built-in opponents

A hand-tuned roster from beginner to master. Pick a tier and challenge any of them with your own bots.

Beginner

Under 1000
4
Wretched Wilma

Wretched Wilma

650
Eccentric

Hangs queens, blames the board, refuses to resign. A grim student of suffering.

Apologetic Anders

Apologetic Anders

900
Defensive

Trades down, retreats often, defends everything. Sorry about that move. And that one.

Funny Frank

Funny Frank

800
Eccentric

Marches pawns, promotes early, occasionally wins by sheer surprise.

Greg

Greg

600
Engine

Coffee-shop beginner. Looks one ply ahead. Will hang queens.

Intermediate

1000 – 1599
5
Sir Reginald

Sir Reginald

1100
Defensive

Castles like a gentleman, develops every piece, refuses to leave anything en prise.

Mean Mei

Mean Mei

1250
Aggressive

Trades down only when ahead, hunts hanging pieces, loves a good fork.

The Oracle

The Oracle

1500
Tricky

Doesn't hang pieces, controls the center, finishes when the moment comes.

Marcy

Marcy

1000
Engine

Casual club beginner. Plays the obvious move.

Theo

Theo

1400
Engine

Reasonable amateur. Sound openings, solid middlegame.

Advanced

1600 – 2099
1
Petra

Petra

1800
Engine

Strong club player. Punishes tactical mistakes.

Master

2100 +
2
Dr. Linwood

Dr. Linwood

2200
Engine

Solid expert. Patient, positional, deadly in the endgame.

The Tinkerer

The Tinkerer

2600
Engine

Engine unleashed. Skill 20, depth 14, 2s ceiling. You will lose.