B
litz
T
actics
Achievements
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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: Opening
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
99
Origynalx3
93
josgar05
85
mikezchess
81
evildays
81
Three high scores
Phenomenonly
61
dcc_london
56
KirinoKousaka
50
Plattfuss
48
Vega9001
37
Most infinity puzzles solved
Sensei_T
701
WildheartGuff
643
nose
272
ap_is_the_best
227
Hayate_kun
128
Past 24 hours
Haste high scores
josgar05
85
evildays
81
mikezchess
81
luuu
70
pekka
68
Three high scores
Phenomenonly
61
dcc_london
52
Plattfuss
37
Vega9001
33
valen13221
29
Most infinity puzzles solved
elcrack2013
50
Hayate_kun
48
WildheartGuff
36
Vega9001
29
nose
22
Yesterday
Fastest speedruns
LeafySnack
46.3s
mikezchess
71.7s
Kristian2504
105.3s
Plattfuss
135.2s
Vega9001
171.8s
Countdown high scores
Phenomenonly
94
Plattfuss
40
Vega9001
36
valen13221
21
imwithher
15
Unique puzzles solved
Mohammad_jabari
649
evildays
549
josgar05
373
Maslenok
329
Phenomenonly
329
Today
Fastest speedruns
LeafySnack
42.2s
Unique puzzles solved
Tantalyse
123
jugadatorrerifica
70
anh_ce
44
LeafySnack
30
i_sei
15
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
ThomasH
81
jugadatorrerifica
66
QREWXTZY
50
Rook endgames high scores
dcc_london
100
Phenomenonly
97
jugadatorrerifica
56
Maslenok
39
Vicky
29
Openings high scores
Phenomenonly
96
SalientDiamond
61
jugadatorrerifica
34
Rawkward
23
anh_ce
22
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