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 6 hours

Speedrun

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

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
JaviAlcanyiz_99
84
evildays
84
Silvia
82
Origynalx3
79
Noxie22
67
Three high scores
dcc_london
59
twotonostrich
57
jajuraj
54
KirinoKousaka
53
girdav
44
Most infinity puzzles solved
Vega9001
229
lemondestfou
184
ilovechess13
124
MasterP2k
92
beachoceantoi
79
Past 24 hours
Haste high scores
JaviAlcanyiz_99
72
evildays
60
Mohammad_jabari
56
ThomastheChessEngine
49
HikingExpert74
40
Three high scores
dcc_london
56
HikingExpert74
41
Maxime_2506
28
anh_ce
15
Most infinity puzzles solved
Everest912
50
Vega9001
29
nose
10
MasterP2k
7
king_geometry
4
Yesterday
Fastest speedruns
Kristian2504
80.4s
twotonostrich
81.6s
Vega9001
93.4s
Bolivare123
120.2s
jhoansutta
124.2s
Countdown high scores
twotonostrich
73
Aolivare123
26
Vega9001
24
Unique puzzles solved
HikingExpert74
479
anh_ce
424
JaviAlcanyiz_99
413
Vega9001
373
Vicky
298
Today
Fastest speedruns
jwwells42
58.7s
Kristian2504
77.8s
mikezchess
79.3s
Konstantin0201
111.6s
anh_ce
289.4s
Countdown high scores
Frandy
61
Unique puzzles solved
anh_ce
454
JaviAlcanyiz_99
439
Mohammad_jabari
353
dcc_london
282
HikingExpert74
134

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
wubadubalublub
61
Vicky
58
Vega9001
49
nickolaosgr
47
Rook endgames high scores
dcc_london
94
nickolaosgr
30
Vicky
30
Di_Enel
25
MasterP2k
20
Openings high scores
dcc_london
98
AryehPaniel
43
smuratore
33
Vicky
29
nickolaosgr
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