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 8 hours

Speedrun

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

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
Kayrosas
100
Origynalx3
97
tusharmurali
89
SpoiledKitty
86
josgar05
86
Three high scores
Kayrosas
57
KirinoKousaka
56
dcc_london
53
RishadanPort
51
Plattfuss
50
Most infinity puzzles solved
WildheartGuff
725
droubbley
475
FlipTunic61
194
hnzngrmpf
154
Vega9001
141
Past 24 hours
Haste high scores
mikezchess
47
Plattfuss
46
FireAnkylosaurus
43
i_sei
41
cezrun64
40
Three high scores
dcc_london
53
RishadanPort
51
Vega9001
34
girdav
32
twopawn
30
Most infinity puzzles solved
WildheartGuff
100
FlipTunic61
32
Vega9001
24
maheshsrv2
18
Lohu79
13
Yesterday
Fastest speedruns
AkselWellington
43.0s
mikezchess
78.3s
Kristian2504
104.7s
Konstantin0201
114.6s
maheshsrv2
188.3s
Countdown high scores
SomeGuyIgloo
51
lucasanchismendes
11
Unique puzzles solved
i_sei
697
AryehPaniel
400
anh_ce
246
RishadanPort
222
PompaDeJabon
190
Today
Fastest speedruns
shejin
72.8s
Konstantin0201
134.3s
Vega9001
151.7s
agndum
179.3s
Countdown high scores
shejin
49
Vega9001
26
lucasanchismendes
15
Unique puzzles solved
anh_ce
217
dcc_london
160
Vega9001
151
lucasanchismendes
144
i_sei
101

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
58
anh_ce
34
Rook endgames high scores
jugadatorrerifica
28
anh_ce
24
Openings high scores
AryehPaniel
42
anh_ce
21
maheshsrv2
17
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