Enter row and column totals and the fleet, mark any revealed ship or water cells, then find the hidden ships.
Choose a mark, then tap a cell. Column totals are above the board; row totals are on the left. Blank means not entered.
Large boards start with zero ships. Enter the fleet shown in your puzzle.
填入行列数字和舰队数量，标出题目已揭示的船格或水格，再找出隐藏的战舰。
求解器免费使用，无需注册。谜题计算在浏览器中完成，录入的题目保存在当前浏览器；清除网站数据会删除这些记录。
先对照原题检查提示、尺寸和区域。显示“无解”表示录入的约束无法同时满足；取消或超时并不代表题目无解。可以先加载示例，确认录入与求解流程。
Enter row and column totals and the fleet, mark any revealed ship or water cells, then find the hidden ships.
This solver is free and requires no account. Puzzle calculations run in your browser. Saved clues remain in this browser; clearing site data removes them.
Check the clues and board size against the original puzzle. No solution means the entered constraints cannot all be satisfied. A cancelled or timed-out search does not prove that the puzzle has no solution. Use a built-in example to check the input workflow.