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: Zugzwang

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
Origynalx3
98
twotonostrich
89
josgar05
83
donklemonglr
73
Silvia
72
Three high scores
dcc_london
58
donklemonglr
58
OnlyGambits
53
Plattfuss
53
KirinoKousaka
47
Most infinity puzzles solved
SirParsifal
657
Emiliako
576
wooks2018
154
Meherpreet
125
ghsneligunweryb
124
Past 24 hours
Haste high scores
SpoiledKitty
71
Plattfuss
59
Laparrilla
58
Silvia
55
Niraj_Desai
38
Three high scores
donklemonglr
58
Plattfuss
53
dcc_london
50
cezrun64
40
Adriano_BSB
36
Most infinity puzzles solved
SirParsifal
188
Emiliako
128
Niraj_Desai
18
Srid
11
MaexchenStefan
10
Yesterday
Fastest speedruns
Niraj_Desai
83.8s
Kristian2504
86.2s
Plattfuss
89.7s
Konstantin0201
128.1s
nickolaosgr
338.4s
Countdown high scores
cezrun64
80
Adriano_BSB
70
Plattfuss
51
Niraj_Desai
47
flamehead
36
Unique puzzles solved
ossovulcano
388
donklemonglr
336
Niraj_Desai
204
Plattfuss
184
cezrun64
164
Today
Fastest speedruns
mikezchess
67.5s
Kristian2504
91.9s
Plattfuss
98.2s
Niraj_Desai
103.3s
Boby
107.0s
Countdown high scores
Adriano_BSB
73
Plattfuss
43
Niraj_Desai
40
flamehead
33
crystalwrists
33
Unique puzzles solved
Niraj_Desai
471
donklemonglr
355
dcc_london
319
SirParsifal
188
Plattfuss
175

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
Niraj_Desai
57
nickolaosgr
46
ossovulcano
34
Rook endgames high scores
Niraj_Desai
39
Chess64squares
27
nickolaosgr
23
Openings high scores
Niraj_Desai
39
edimarlon
33
nickolaosgr
31
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