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 20 hours

Speedrun

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

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
95
Phenomenonly
83
Laparrilla
81
JPrime
74
Plattfuss
70
Three high scores
Phenomenonly
59
dcc_london
56
KirinoKousaka
51
Plattfuss
45
Vega9001
43
Most infinity puzzles solved
WildheartGuff
597
droubbley
550
nose
185
Hayate_kun
141
frazi
117
Past 24 hours
Haste high scores
Origynalx3
95
JPrime
74
HuLgO27
45
saviotheattacker
36
jugadatorrerifica
34
Three high scores
Phenomenonly
59
dcc_london
53
josh_root8
33
twopawn
29
Vega9001
29
Most infinity puzzles solved
Hayate_kun
34
Vega9001
30
nose
29
josh_root8
14
FlipTunic61
10
Yesterday
Fastest speedruns
Phenomenonly
86.5s
Kristian2504
106.8s
Konstantin0201
118.5s
Vega9001
167.8s
lyllw46
273.3s
Countdown high scores
Phenomenonly
70
SomeGuyIgloo
54
joaocsp
51
lyllw46
45
Araczin
29
Unique puzzles solved
Phenomenonly
1508
dcc_london
439
Origynalx3
278
i_sei
245
anh_ce
244
Today
Fastest speedruns
Phenomenonly
132.7s
Unique puzzles solved
ookinizay
291
jugadatorrerifica
150
i_sei
148
josh_root8
105
anh_ce
62

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
jugadatorrerifica
67
ookinizay
64
Maslenok
51
Rook endgames high scores
dcc_london
99
Phenomenonly
95
jugadatorrerifica
56
Maslenok
47
anh_ce
26
Openings high scores
Phenomenonly
96
dcc_london
84
jugadatorrerifica
34
Vega9001
31
Maslenok
28
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