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 4 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
Phenomenonly
100
JaviAlcanyiz_99
87
mikezchess
76
Plattfuss
68
LeafySnack
59
Three high scores
dcc_london
56
Phenomenonly
55
LeafySnack
50
Plattfuss
47
KirinoKousaka
47
Most infinity puzzles solved
WildheartGuff
706
droubbley
374
TparTR
326
Hayate_kun
234
threexk
167
Past 24 hours
Haste high scores
JaviAlcanyiz_99
81
cezrun64
48
prawnsacrifice
39
smuratore
30
lyllw46
30
Three high scores
dcc_london
54
girdav
43
Leonidas881
35
Antichess2
28
valen13221
28
Most infinity puzzles solved
WildheartGuff
100
TparTR
85
Zero_Fallen2
69
DrOlliver
50
Hayate_kun
43
Yesterday
Fastest speedruns
Kristian2504
69.7s
mikezchess
70.2s
Konstantin0201
87.7s
Miau
121.6s
lyllw46
142.7s
Countdown high scores
SomeGuyIgloo
40
Miau
37
sayo
34
lyllw46
26
valen13221
17
Unique puzzles solved
JaviAlcanyiz_99
670
Antichess2
349
lyllw46
231
lafoole_0
194
UsulAMB
184
Today
Fastest speedruns
Kristian2504
105.3s
Konstantin0201
223.4s
valen13221
354.4s
Countdown high scores
law
37
valen13221
29
Unique puzzles solved
Leonidas881
685
dcc_london
203
valen13221
164
AryehPaniel
155
anh_ce
136

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
90
jugadatorrerifica
68
MasterPru2k
43
anh_ce
34
Rook endgames high scores
dcc_london
79
jugadatorrerifica
48
MasterPru2k
24
anh_ce
19
Openings high scores
dcc_london
82
AryehPaniel
42
jugadatorrerifica
31
smuratore
29
anh_ce
23
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