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: X Ray Attack

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
Origynalx3
95
josgar05
83
JPrime
74
Plattfuss
70
Three high scores
Phenomenonly
59
dcc_london
56
KirinoKousaka
51
Plattfuss
48
Vega9001
43
Most infinity puzzles solved
WildheartGuff
802
droubbley
457
Sensei_T
400
nose
215
noqueenz
117
Past 24 hours
Haste high scores
Phenomenonly
99
Origynalx3
93
lemondestfou
27
MasterPru2k
25
tolevich
25
Three high scores
Phenomenonly
53
dcc_london
52
KirinoKousaka
50
linearline
27
valen13221
26
Most infinity puzzles solved
Sensei_T
248
WildheartGuff
181
attewy
63
nose
54
papadoble
41
Yesterday
Fastest speedruns
Phenomenonly
88.3s
Kristian2504
108.0s
agndum
143.3s
Konstantin0201
211.3s
valen13221
245.6s
Countdown high scores
Phenomenonly
100
Amaro
41
valen13221
30
SomeGuyIgloo
26
Dhakiyah
21
Unique puzzles solved
Phenomenonly
727
Sensei_T
400
dcc_london
344
Origynalx3
257
anh_ce
235
Today
Countdown high scores
SerpiasUltra
28
Unique puzzles solved
SerpiasUltra
124
WildheartGuff
100
anh_ce
48
attewy
6
nose
5

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
ookinizay
67
jugadatorrerifica
57
MatTactics
51
Rook endgames high scores
Phenomenonly
97
jugadatorrerifica
49
Maslenok
38
Vicky
34
attewy
26
Openings high scores
Phenomenonly
98
dcc_london
89
jugadatorrerifica
31
MatTactics
26
anh_ce
21
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