Solution for a square at

Inclusive method: Line 1. Column 18. Letter D.
The current solution is right.
AB
CD
EF
GH
IJ
KL
MN
OP
QR
ST
UV
WX
Y

Button verification of the grid
Button tip for a square
Button solution for a square
Button solution for the grid
Button Save the game.
Button Reload a game.
Button reset
Choose a new grid.
Button Back to Home.
Alphadoku, 25x25 sudoku puzzle: Enter a puzzle solution to solve and play online,
with solution for a square.

You can have four possible answers:
 • One solution for a square and the current solution is right.
 • One solution for a square but however, the solution is wrong!
 • The solution is wrong! Impossible solution line:x, column:y.
 • Input Error with equal letters in row, colomn or area.