Achievements

Fast-paced chess puzzles. Choose a game mode to get started.

Haste

Combos gain time. Mistakes lose time. New puzzles each run.
New puzzles each run

Three

Three minutes, three lives,
three hints
New puzzles each run

Countdown

Solve puzzles before time runs out. New level each day.
Next level in 7 hours

Speedrun

Solve a sequence of puzzles as quickly as you can.
Theme: Opening

Infinity

Play through endless puzzles. Set your own difficulty.
Sign up to track your progress

Repetition

Quickly solve puzzles without mistakes to unlock the next level.
Level 1 — Just warming up
Past 7 days
Haste high scores
JaviAlcanyiz_99
85
Nickus67
77
Silvia
77
Origynalx3
73
tusharmurali
72
Three high scores
dcc_london
58
KirinoKousaka
54
Plattfuss
46
Miau
43
Vega9001
39
Most infinity puzzles solved
WildheartGuff
622
RedClover
280
Miau
210
droubbley
202
davidyomtobian
128
Past 24 hours
Haste high scores
evildays
62
Plattfuss
60
JaviAlcanyiz_99
52
chuss
42
e16
41
Three high scores
Plattfuss
46
twopawn
36
YourBestChessMove
32
alexpecam
15
Delfinito
14
Most infinity puzzles solved
SerpiasUltra
110
droubbley
71
RedClover
59
eustasiv
18
Faust
5
Yesterday
Fastest speedruns
Konstantin0201
84.3s
Plattfuss
99.9s
threexk
142.0s
vasikvasikvasikvasik
171.1s
rafv77
257.4s
Countdown high scores
Plattfuss
50
davidyomtobian
38
rafv77
18
Unique puzzles solved
QREWXTZY
493
YourBestChessMove
409
chuss
391
dcc_london
293
anh_ce
275
Today
Fastest speedruns
Kristian2504
83.1s
Konstantin0201
127.3s
Countdown high scores
SomeGuyIgloo
58
Vega9001
31
JMbishop
31
Unique puzzles solved
UsulAMB
328
anh_ce
217
chuss
184
SerpiasUltra
159
YourBestChessMove
132

Themed chess puzzle sets.

Combos gain time. Mistakes lose time. New puzzles each run.

Mate in one

Practice checkmate in one move. Great for beginners.

Rook endgames

The most common type of piece endgames.

Openings

Practice tactical patterns from chess openings.
Past 3 days
Mate in one high scores
dcc_london
100
AryehPaniel
59
jugadatorrerifica
59
Vicky
58
eustasiv
54
Rook endgames high scores
dcc_london
82
jugadatorrerifica
64
Vicky
30
anh_ce
21
MasterPru2k
13
Openings high scores
dcc_london
83
eustasiv
41
jugadatorrerifica
34
AryehPaniel
31
Vicky
25
Site updates
Sep 22, 2025
You can now customize the pieces on your board
Sep 17, 2025
Game mode puzzles have been upgraded to use the latest Lichess puzzle database
Aug 17, 2025
After selecting a game mode, you can now resize the chessboard via the icon in the bottom-right corner.
May 23, 2021
You can now create and play custom puzzle sets. This feature is still early in development. Feedback is welcome!
Dec 19, 2020
You can now use right click to draw shapes on the board. Click to draw circles. Click and drag to draw arrows.
Dec 15, 2020
When you view puzzles after a haste round, puzzles you made mistakes on will now be clearly shown.
Dec 8, 2020
A new game mode (Three) is in beta. Have fun and let us know what you think!
Oct 7, 2020
Click the "view puzzles" button after a speedrun or haste round to view the puzzles you saw during the round.
Oct 1, 2020
If you forgot your password and signed up with an email, you can reset your password here.
Feb 26, 2019
Rated mode is now in beta. Expect a rating reset in the future after puzzle ratings stabilize and tweaks are made to the rating system. More features to come.
Feb 24, 2019
Turn sounds on/off using the volume icon in the header
Feb 21, 2019
You can now customize your board colors
Links
Join the Discord channel
Practice endgame positions
ScoreboardAbout