
It's a very simple version of the original documentation. It contains the most important shortcuts only:

CTRL-B						create board
CTRL-R						remove board
CTRL-scroll					change board size
ENTER						create unit
F2							set active symbol
F12							pencilmarks on/off
F11							colored/monochrome
(CTRL-P						save sudoku to clipboard as image)
ALT+ENTER,
 F3,
 middle mouse button click	quick actions
CTRL-Q						benchmark (one sudoku/line)
CTRL-ENTER					crack
CTRL-S						save sudoku
CTRL-O						open saved sudoku (= drop file)
ALT-arrows					change cons....
ALT-SHIFT-arrows				change gt/lt
SCROLL LOCK-arrow			move puzzle on grid

Most of these commands can be found in the context menu.
