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 14 hours

Speedrun

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

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
Silvia
91
somniatori
81
PatternMismatch
80
luuu
78
Origynalx3
77
Three high scores
dcc_london
58
KirinoKousaka
54
PatternMismatch
53
pekka
45
Plattfuss
41
Most infinity puzzles solved
Vega9001
201
Oliver
127
arkeddie
119
hestingz
91
kafework
84
Past 24 hours
Haste high scores
Origynalx3
77
luuu
76
evildays
67
Noxie22
63
Laparrilla
62
Three high scores
dcc_london
56
Plattfuss
41
ThomastheChessEngine
38
Adriano_BSB
36
wubadubalublub
32
Most infinity puzzles solved
Adriano_BSB
26
nose
14
tadash123
4
Yesterday
Fastest speedruns
ichiro
66.2s
Adriano_BSB
98.7s
Kristian2504
112.7s
Plattfuss
172.1s
agndum
197.9s
Countdown high scores
Frandy
90
Adriano_BSB
58
Plattfuss
46
leverage8953
43
hpm144
42
Unique puzzles solved
Frandy
476
hpm144
376
Adriano_BSB
348
KirinoKousaka
320
jugadatorrerifica
192
Today
Fastest speedruns
Boby
91.4s
anh_ce
631.4s
mongloid
750.9s
Countdown high scores
Frandy
67
Unique puzzles solved
Laparrilla
254
YourBestChessMove
166
Noxie22
160
anh_ce
93
mongloid
70

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
Frandy
68
wubadubalublub
64
jugadatorrerifica
59
smuratore
58
Rook endgames high scores
dcc_london
75
Frandy
75
jugadatorrerifica
57
vril
57
Vicky
42
Openings high scores
dcc_london
72
Toadofsky
59
Frandy
49
jugadatorrerifica
44
anh_ce
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