B
litz
T
actics
Achievements
Sign up
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 3 hours
Speedrun
Solve a sequence of puzzles as quickly as you can.
Theme: Trapped Piece
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
josgar05
96
Origynalx3
89
evildays
79
JaviAlcanyiz_99
75
Three high scores
Phenomenonly
62
dcc_london
59
KirinoKousaka
54
MSanand
48
girdav
48
Most infinity puzzles solved
jam67
541
nose
400
usernoname
235
JRoger
198
WildheartGuff
185
Past 24 hours
Haste high scores
josgar05
90
JaviAlcanyiz_99
75
Laparrilla
50
kh25
50
Vega9001
33
Three high scores
dcc_london
53
KirinoKousaka
50
Plattfuss
47
kh25
44
linearline
29
Most infinity puzzles solved
DrOlliver
100
jam67
89
nose
35
JRoger
32
glushko
25
Yesterday
Fastest speedruns
Phenomenonly
50.9s
Boby
66.5s
Kristian2504
79.1s
Plattfuss
97.9s
Rawkward
103.1s
Countdown high scores
Phenomenonly
95
joaocsp
53
Plattfuss
47
Aplastacucarachas
35
Unique puzzles solved
evildays
540
Plattfuss
146
XavierFRA
143
fschmidt
131
josgar05
123
Today
Fastest speedruns
Boby
88.4s
Kristian2504
110.3s
Konstantin0201
225.0s
Countdown high scores
Vega9001
27
law
23
valen13221
23
MaidenKnight
13
Unique puzzles solved
kh25
795
UsulAMB
362
XavierFRA
324
anh_ce
189
josgar05
158
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
jugadatorrerifica
67
MasterPru2k
47
anh_ce
35
Rook endgames high scores
Phenomenonly
94
jugadatorrerifica
41
anh_ce
25
Openings high scores
Phenomenonly
83
jugadatorrerifica
43
anh_ce
22
nickolaosgr
20
MasterPru2k
12
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