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 13 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
Kayrosas
100
Phenomenonly
99
josgar05
97
evildays
91
donklemonglr
82
Three high scores
dcc_london
57
Phenomenonly
55
MSanand
52
Plattfuss
45
threexk
40
Most infinity puzzles solved
korvmedmos97
1136
WildheartGuff
653
law
179
nose
140
threexk
136
Past 24 hours
Haste high scores
Mohammad_jabari
67
evildays
64
i_sei
35
frazi
33
Jabots
32
Three high scores
dcc_london
57
MSanand
44
Vega9001
37
twopawn
32
lyllw46
31
Most infinity puzzles solved
WildheartGuff
130
nose
59
droubbley
33
Vega9001
16
lyllw46
11
Yesterday
Fastest speedruns
LeafySnack
41.7s
Phenomenonly
75.7s
mikezchess
78.3s
Kristian2504
85.8s
Konstantin0201
140.1s
Countdown high scores
Phenomenonly
93
lyllw46
41
Vega9001
34
cezrun64
33
valen13221
28
Unique puzzles solved
Phenomenonly
487
dcc_london
475
MSanand
235
Maslenok
200
Mohammad_jabari
156
Today
Fastest speedruns
LeafySnack
43.4s
Phenomenonly
78.0s
valen13221
220.2s
Countdown high scores
Phenomenonly
73
SomeGuyIgloo
61
Miau
41
valen13221
30
joaocsp
23
Unique puzzles solved
Vicky
269
Maslenok
236
Mohammad_jabari
201
valen13221
184
jugadatorrerifica
154

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
LeafySnack
100
jugadatorrerifica
65
smuratore
54
Rook endgames high scores
Phenomenonly
100
dcc_london
91
ookinizay
48
Zsomborvagyok
32
Vicky
30
Openings high scores
dcc_london
78
Phenomenonly
64
jugadatorrerifica
44
lyllw46
40
Maslenok
33
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