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: Queen Endgame

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
tusharmurali
89
Silvia
88
JaviAlcanyiz_99
79
goodweather
78
Origynalx3
75
Three high scores
dcc_london
55
KirinoKousaka
51
JaviAlcanyiz_99
50
Plattfuss
47
threexk
44
Most infinity puzzles solved
WildheartGuff
746
threexk
460
droubbley
456
NOUS_SOMMES_MERCREDI
214
RedClover
187
Past 24 hours
Haste high scores
goodweather
78
JaviAlcanyiz_99
73
Plattfuss
71
evildays
61
Silvia
61
Three high scores
dcc_london
51
KirinoKousaka
51
JaviAlcanyiz_99
49
Plattfuss
47
threexk
40
Most infinity puzzles solved
WildheartGuff
100
alexpecam
63
SEM1_G0D
49
Ohanna_2020
48
dereke01
30
Yesterday
Fastest speedruns
mikezchess
73.3s
Kristian2504
80.0s
Konstantin0201
88.6s
Plattfuss
94.0s
sonnenwichtel2000
155.7s
Countdown high scores
Plattfuss
58
Unique puzzles solved
threexk
600
JaviAlcanyiz_99
435
anh_ce
273
AryehPaniel
258
tusharmurali
210
Today
Fastest speedruns
Konstantin0201
87.3s
Kristian2504
136.5s
sonnenwichtel2000
256.4s
Countdown high scores
SomeGuyIgloo
52
threexk
41
Unique puzzles solved
JaviAlcanyiz_99
574
anh_ce
240
YourBestChessMove
195
UsulAMB
171
KirinoKousaka
171

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
58
jugadatorrerifica
58
smuratore
55
Vicky
54
Rook endgames high scores
jugadatorrerifica
53
Vicky
32
MasterPru2k
24
anh_ce
21
Openings high scores
AlexNM12
52
AryehPaniel
44
fishybobber1943
40
smuratore
30
anh_ce
20
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