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 24 hours

Speedrun

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

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
josgar05
100
Phenomenonly
100
Origynalx3
93
Plattfuss
78
pebIlmey
74
Three high scores
Plattfuss
60
Phenomenonly
58
dcc_london
57
KirinoKousaka
52
twopawn
37
Most infinity puzzles solved
droubbley
744
Ohanna_2020
634
DrOlliver
200
lemondestfou
180
JRoger
142
Past 24 hours
Haste high scores
josgar05
100
Origynalx3
93
Plattfuss
78
Josh_Capa_Root8
45
KirinoKousaka
42
Three high scores
Plattfuss
60
dcc_london
52
KirinoKousaka
52
OTI97
36
Miau
35
Most infinity puzzles solved
droubbley
353
Ohanna_2020
62
Hermion
47
JRoger
27
awsomeanimallover
6
Yesterday
Fastest speedruns
mikezchess
76.1s
Phenomenonly
77.7s
Rawkward
105.5s
Sensei_T
117.6s
Plattfuss
130.7s
Countdown high scores
Phenomenonly
75
Plattfuss
46
JMbishop
32
OTI97
29
Unique puzzles solved
KirinoKousaka
761
droubbley
353
Plattfuss
199
josgar05
196
Phenomenonly
190
Today
Fastest speedruns
Sensei_T
218.1s
Countdown high scores
Miau
37
Unique puzzles solved
dcc_london
82
Miau
71
Josh_Capa_Root8
50
Sensei_T
30
saviotheattacker
16

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
smuratore
59
Vicky
58
anh_ce
39
Rook endgames high scores
Phenomenonly
100
N2Terrible
40
anh_ce
25
Openings high scores
Phenomenonly
100
anh_ce
26
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