More ways
to make a move.
The tools aim to make board entry and result explanations usable without relying on colour or a mouse alone.
Keyboard controls
Use the skip link to jump to the main content. Tab and Shift+Tab move through links, form fields, controls, and grid cells. Press Enter or Space on a cell to toggle it. In a board or piece grid, arrow keys move between neighbouring cells; Home and End move to the first and last cell in the current row. Selected cells announce their occupied or empty state.
Text alternative for board entry
The 8 × 8 board includes a text-entry option. Enter exactly eight lines of eight 0 or 1 characters. A 1 is occupied and a 0 is empty. Apply text board to update the grid. Errors explain the expected format. Each piece editor also has a text option using five lines of five 0 or 1 characters, which is useful if precise tapping is difficult.
Reading results
Results include written row and column coordinates, clearing counts, and a plain-text plan that can be copied. Colour is not the only indication of state: occupied cells have a visible mark, controls have pressed states, and each grid cell has an accessible label. Status messages announce when a calculation completes or validation fails.
Display and motion
The layout adapts to narrow screens and uses system fonts, visible keyboard focus, labelled form controls, and native expandable FAQ sections. There are no essential animations. You can zoom the page using your browser; board and piece cells scale with the available width. Print layout removes navigation and editing controls while keeping result content.
Known limitations
Dense puzzle grids still take time to navigate with assistive technology. The text alternatives can be faster. Search results describe a limited model rather than the original game’s visual interface. This is an accessibility aim, not a claim of formal certification or compatibility with every device and assistive technology combination.
Report a barrier
Use Contact and describe the page, task, browser, device, and assistive technology involved if you are comfortable doing so. Explain what happened and what you expected. Do not include passwords or other sensitive details. Feedback can help identify concrete improvements.