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: Mate In1

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
Plattfuss
89
Origynalx3
83
Phenomenonly
81
josgar05
81
Silvia
79
Three high scores
dcc_london
56
Phenomenonly
54
KirinoKousaka
53
Plattfuss
53
Fedorduck
41
Most infinity puzzles solved
Yazanaaaaaa
487
Ohanna_2020
338
Ladas65
284
iburfen
152
JRoger
151
Past 24 hours
Haste high scores
Plattfuss
84
josgar05
71
Silvia
71
pebIlmey
55
Origynalx3
50
Three high scores
dcc_london
56
Plattfuss
49
twopawn
33
smuratore
29
Vega9001
29
Most infinity puzzles solved
Ohanna_2020
134
ameer1_2_3
50
Ladas65
44
JRoger
35
nose
30
Yesterday
Fastest speedruns
Phenomenonly
68.2s
mikezchess
70.9s
Kristian2504
98.5s
Rawkward
123.7s
Meloblues
194.4s
Countdown high scores
Phenomenonly
69
Plattfuss
51
Meloblues
40
law
40
Vega9001
37
Unique puzzles solved
Origynalx3
221
pebIlmey
207
Plattfuss
176
Meloblues
172
i_sei
172
Today
Fastest speedruns
Boby
35.1s
Countdown high scores
Dhakiyah
20
Unique puzzles solved
Josh_Capa_Root8
164
HuLgO27
138
Mr_Minecraft_Ash
91
josgar05
77
anh_ce
65

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
Vicky
56
smuratore
55
anh_ce
36
LagartoListo
5
Rook endgames high scores
Meloblues
35
Vicky
29
anh_ce
24
MasterPru2k
24
jajapple
24
Openings high scores
Vicky
39
MasterPru2k
23
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