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 8 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
Origynalx3
99
josgar05
90
Plattfuss
84
Mohammad_jabari
73
Laparrilla
72
Three high scores
dcc_london
56
KirinoKousaka
53
Plattfuss
49
troysharples
36
IzanPa
34
Most infinity puzzles solved
Ohanna_2020
550
iburfen
152
JRoger
139
Ladas65
118
jam67
106
Past 24 hours
Haste high scores
josgar05
78
Origynalx3
77
wubadubalublub
46
jajapple
37
Ptitan
35
Three high scores
dcc_london
50
troysharples
35
lee4546
22
Most infinity puzzles solved
Ohanna_2020
285
lemondestfou
98
glushko
36
Caves
18
JRoger
10
Yesterday
Fastest speedruns
Phenomenonly
92.1s
Rawkward
157.4s
acatnamedchicken
434.6s
Unique puzzles solved
Origynalx3
838
troysharples
592
Vicky
238
dcc_london
182
Mohammad_jabari
165
Today
Fastest speedruns
Rawkward
161.8s
Konstantin0201
182.0s
Countdown high scores
Mcappuccio
32
Unique puzzles solved
Origynalx3
425
Ohanna_2020
286
jajapple
166
josgar05
100
lemondestfou
98

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
Phenomenonly
89
Vicky
48
anh_ce
32
markitorene
13
Rook endgames high scores
Phenomenonly
76
Vicky
46
anh_ce
24
MasterPru2k
19
Openings high scores
Phenomenonly
42
Vicky
34
MasterPru2k
21
anh_ce
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