Dotso

Shareware
OLDGAMES.ARCHIVEverified browser DOS & homebrewDOTSO.EXE
←Move the line cursor↑Move the line cursor↓Move the line cursor→Move the line cursorSpaceSwitch between horizontal and vertical linesEnterDraw the selected line or continue an opening promptOOpen options and computer difficultyDRead the original directionsNStart a new boardQQuit the original game

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Player notes

About this game

Dotso is William Soleau’s take on dots and boxes. Players add one line at a time, trying to close the fourth side of a square and claim it. Some lines are already on the board, and gray squares cannot be captured, so each new layout asks you to rethink familiar patterns.

Move the line cursor with the arrow keys, press Space to switch between horizontal and vertical, then Enter to draw. Completing a box earns another turn. When a capture opens a chain of available boxes, the game fills the remaining available captures automatically after your first one.

The 1.1 shareware edition pairs a human yellow player with a red computer opponent. The first turn can vary, so let the opening announcement finish. O opens the options, including Beginner, Average and Expert computer levels; the default is Average. The two-human option belongs to the registered edition and is not part of this browser release.

Start here

Quick tips

Space changes the line’s orientation; Enter actually places it.

Check the gray blocked squares before assuming a line will complete a box.

Beginner is available in O → player settings if the default Average opponent is too strong.

Arrow keys
Move the line cursor
Space
Switch between horizontal and vertical lines
Enter
Draw the selected line or continue an opening prompt
O
Open options and computer difficulty
D
Read the original directions
N
Start a new board
Q
Quit the original game

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Archive notes

Rights and Source Notes

Browser play is available for this entry.

Distribution
Shareware
Browser player
js-dos · Browser play
Added to archive
2026-11-02
SYSTEM ONLINE

CTRL+K COMMAND MODE

Archive Commands

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