Ronin
andrewt.netPlay Ronin: fill each region with Chess pieces such that no piece can attack a piece of the same type. Free daily browser play, no download.
Ronin
Tabletop Games
How to play Ronin
Ronin is a game of sudoku played on a chessboard. The 6×6 chessboard is divided into 3×2 regions, each of which must contain a king, a queen, a rook, a bishop, a knight and a pawn. No piece can attack another piece of the same type, ignoring pieces that are in the way — so you can't have two rooks in the same row or column, two bishops on the same diagonal, etc.
- You can have (say) two knights in the same row or column, because knights do not move horizontally or vertically. There is no difference between the white and black pieces except that clues are shown in black and your guesses are shown in white.
- I think of the pawns as moving up the screen, but it doesn't matter — no two pawns can be diagonally adjacent because one will always be attacking the other.
- In this example, the rook in the left-hand region must be in the highlighted square because the rook in the right-hand region would be attacking it otherwise:.
- In this example, the highlighted square can only be a knight, because any other piece would be under attack:.
The facts
- Runs on
- andrewt.net
- Category
- Tabletop Games
- Languages
- French
- How often
- A new puzzle every day
- On BoreGame since
- February 2026
- Last updated
- February 14, 2026
- Price
- Free, no signup
Questions about Ronin
How do you play Ronin?
Ronin is a game of sudoku played on a chessboard. The 6×6 chessboard is divided into 3×2 regions, each of which must contain a king, a queen, a rook, a bishop, a knight and a pawn. No piece can attack another piece of the same type, ignoring pieces that are in the way — so you can't have two rooks in the same row or column, two bishops on the same diagonal, etc. You can have (say) two knights in the same row or column, because knights do not move horizontally or vertically. There is no difference between the white and black pieces except that clues are shown in black and your guesses are shown in white. I think of the pawns as moving up the screen, but it doesn't matter — no two pawns can be diagonally adjacent because one will always be attacking the other. In this example, the rook in the left-hand region must be in the highlighted square because the rook in the right-hand region would be attacking it otherwise:. In this example, the highlighted square can only be a knight, because any other piece would be under attack:.
Where can I play Ronin?
On andrewt.net. You can also start it from this BoreGame listing.
How it compares
If you play Ronin, the closest things to it in the catalogue are Cardle, Blackjack Smack and Blackjackle. They sit in the same tabletop games category. See the full list of alternatives.
