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: Pin

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
99
Plattfuss
89
josgar05
81
Phenomenonly
81
Silvia
79
Three high scores
dcc_london
56
Phenomenonly
54
Plattfuss
53
KirinoKousaka
53
Fedorduck
41
Most infinity puzzles solved
Yazanaaaaaa
487
Ohanna_2020
375
Ladas65
284
jam67
172
JRoger
157
Past 24 hours
Haste high scores
Origynalx3
99
Silvia
71
josgar05
71
Plattfuss
60
vakkomondor
44
Three high scores
KirinoKousaka
53
Plattfuss
46
IzanPa
34
smuratore
29
MartialGuard
20
Most infinity puzzles solved
jam67
38
Ohanna_2020
37
JRoger
21
zoike33
11
papadoble
8
Yesterday
Fastest speedruns
Phenomenonly
34.6s
Boby
35.1s
mikezchess
49.1s
Kristian2504
54.6s
Konstantin0201
59.6s
Countdown high scores
Phenomenonly
49
Plattfuss
46
law
21
Dhakiyah
20
Unique puzzles solved
Plattfuss
168
Josh_Capa_Root8
164
KirinoKousaka
139
HuLgO27
138
Mr_Minecraft_Ash
91
Today
Fastest speedruns
Boby
95.7s
Phenomenonly
97.3s
Rawkward
147.8s
Drelly
395.3s
Countdown high scores
Drelly
21
Rishthefish
21
Unique puzzles solved
vakkomondor
117
anh_ce
112
Drelly
63
Rishthefish
61
lyllw46
59

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
smuratore
55
anh_ce
36
Rook endgames high scores
dcc_london
69
Meloblues
35
anh_ce
27
MasterPru2k
24
Openings high scores
MasterPru2k
23
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