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 15 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
Origynalx3
100
Phenomenonly
99
evildays
87
josgar05
85
mikezchess
81
Three high scores
Phenomenonly
61
dcc_london
57
Squarenerd
52
Plattfuss
47
KirinoKousaka
46
Most infinity puzzles solved
droubbley
324
nose
224
WildheartGuff
176
papadoble
82
Squarenerd
74
Past 24 hours
Haste high scores
Phenomenonly
99
evildays
87
mikezchess
68
josgar05
63
Origynalx3
35
Three high scores
dcc_london
55
twopawn
35
linearline
30
QBrown
25
Most infinity puzzles solved
droubbley
78
nose
64
Aleyo
13
Srid
11
papadoble
9
Yesterday
Fastest speedruns
LeafySnack
67.5s
Squarenerd
80.0s
Kristian2504
88.1s
Rawkward
90.8s
mikezchess
107.7s
Countdown high scores
Phenomenonly
90
Squarenerd
74
Rawkward
40
valen13221
35
law
31
Unique puzzles solved
evildays
819
Phenomenonly
662
dcc_london
537
Maslenok
186
Squarenerd
168
Today
Fastest speedruns
mikezchess
107.9s
jugadatorrerifica
541.4s
Unique puzzles solved
evildays
710
mikezchess
217
Vicky
131
roysong0203
125
jugadatorrerifica
80

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
evildays
88
jugadatorrerifica
69
smuratore
58
Rook endgames high scores
Phenomenonly
100
dcc_london
89
Maslenok
36
SPDRPortfolio
26
Vicky
26
Openings high scores
Phenomenonly
99
dcc_london
97
Squarenerd
76
evildays
59
smuratore
29
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