Yutnori diagram — capture with geol, or bring a new piece out

Your piece is on the corner (point 5) and an opponent stands on the center point (point 23). The throw is geol, three steps. A piece that stopped on a corner takes the diagonal shortcut, so moving it three steps lands on the center and captures. Bringing a piece out of home only stands a new piece on 3.

Start

Geol, three steps: the corner piece and the opponent

Start. Geol, three steps: the corner piece and the opponent

The red piece is on the upper-right corner. The blue piece is on the center point, three stations down the diagonal from that corner. The dots and diagonals match Playfulo's yut board. Pieces at home are off the board.

Line 1 / 4

Same geol: the capturing landing, or a new piece

On the left the opponent is gone. On the right the corner piece never moved and point 3 only gained a piece.

Capture

Land on the center (23)

Capture. Land on the center (23)

Three steps plus the capture score and the center bonus. Normal and Hard rank moves by this score, and Hard shuffles that order less.

Missed capture

Home to 3

Missed capture. Home to 3

You have one more piece on the board and you walked past the capture. Easy ignores the score, so this move is just as likely as any other legal one.

How Playfulo's yutnori AI chooses

The yutnori AI does not read several throws ahead. It scores each piece that can move with the throw you just made.

  • EasyIgnores the score and picks uniformly among legal moves. Bringing a piece out instead of capturing, as in the picture, comes up often.
  • NormalAdds a shake of 0 to 12 on top of captures, finishes, shortcuts, and stacks, then plays the highest. A capture's 80 points is larger than that shake, so this geol prefers the capture.
  • HardSame table, but the shake is only 0 to 4, so the ranking flips less often than on Normal. Sending a stack and stepping onto a corner shortcut also rise on this table.

Capture 80, finish 70, corner or center 18, stack 12, Easy's uniform draw, Normal's shake of 12, and Hard's shake of 4 are the yutnori scoring function. The dots on the diagram match the game board.

FAQ

What is back-do in yutnori?

Back-do happens when only the specially marked stick lands flat side up. Your piece moves one step backward. It can capture an opponent directly behind you or return a piece to a corner it just passed, but if you have no piece on the board it is discarded.

How do shortcuts work in yutnori?

Stop exactly on the first or second corner and your next move takes the inner diagonal. Stop exactly on the center point and you head straight toward the finish. Stopping on the first corner and then the center is the shortest route at 11 steps.

Is stacking pieces in yutnori always a good idea?

No. A stack moves several pieces with one throw, but if it is captured all of them return to start. Avoid stacking when an opponent is two or three steps behind, and prefer stacking on a shortcut where you are hard to chase.