Chushogi: Fix bug with non-lion double movers capturing lion

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog for shogiops
 
+## v0.16.2
+
+- Fixed `chushogi` bug where non-Lion double movers making a mid-step Lion capture was not preventing Lion counterstrike.
+
 ## v0.16.1
 
 - Fixed `annanshogi` move generation.

package.json

@@ -1,6 +1,6 @@
 {
  "name": "shogiops",
- "version": "0.16.1",
+ "version": "0.16.2",
  "description": "Shogi rules and operations",
  "keywords": [
  "shogi",

src/variant/position.ts

@@ -298,13 +298,19 @@ export abstract class Position {
  piece.role = promote(this.rules)(role) || role;
 
  const capture = this.board.set(md.to, piece),
- secondCapture = defined(md.midStep) ? this.board.take(md.midStep) : undefined;
+ midCapture = defined(md.midStep) ? this.board.take(md.midStep) : undefined;
+
+ // process midCapture (if exists) before final destination capture
+ if (defined(midCapture)) {
+ if (!lionRoles.includes(role) && midCapture.color === this.turn && lionRoles.includes(midCapture.role))
+ this.lastLionCapture = md.midStep;
+ this.storeCapture(midCapture);
+ }
  if (capture) {
  if (!lionRoles.includes(role) && capture.color === this.turn && lionRoles.includes(capture.role))
  this.lastLionCapture = md.to;
  this.storeCapture(capture);
  }
- if (defined(secondCapture)) this.storeCapture(secondCapture);
  }
  }
 }