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 3 hours

Speedrun

Solve a sequence of puzzles as quickly as you can.
Theme: Mate In3

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
Phenomenonly
99
Laparrilla
94
josgar05
91
Origynalx3
88
mikezchess
81
Three high scores
Phenomenonly
57
dcc_london
56
KirinoKousaka
55
Plattfuss
42
Miau
40
Most infinity puzzles solved
nose
464
gewetz
334
jam67
328
Ladas65
306
JRoger
219
Past 24 hours
Haste high scores
Origynalx3
88
Phenomenonly
78
fschmidt
73
Jobl
38
roscaenall
27
Three high scores
dcc_london
55
troysharples
36
Aa11001100
19
anuj
8
Most infinity puzzles solved
jam67
74
Ladas65
57
droubbley
50
nose
38
Ahmadkh2004
38
Yesterday
Fastest speedruns
Phenomenonly
57.8s
Boby
66.3s
mikezchess
73.9s
Rawkward
153.2s
moonman105
187.7s
Countdown high scores
Phenomenonly
71
law
41
vakkomondor
34
Miau
26
Unique puzzles solved
Phenomenonly
567
Origynalx3
465
josgar05
153
vakkomondor
151
jam67
150
Today
Fastest speedruns
Zsomborvagyok
74.7s
Phenomenonly
87.7s
Rawkward
115.4s
acatnamedchicken
281.5s
Countdown high scores
Phenomenonly
100
Rawkward
46
law
36
Mamuute
21
anuj
10
Unique puzzles solved
fschmidt
782
Phenomenonly
302
Jobl
209
dcc_london
153
Zsomborvagyok
141

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
Phenomenonly
100
dcc_london
100
MasterPru2k
50
Zsomborvagyok
38
anh_ce
36
Rook endgames high scores
Phenomenonly
94
Zsomborvagyok
40
anh_ce
25
Openings high scores
Phenomenonly
100
dcc_london
88
koenigseggfanguy
35
Zsomborvagyok
32
MasterPru2k
22
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