The reveal on b9

AB-JChess reads three jieqi games

126 moves

Marks by AB-JChess, 2 s a move, from the position each player saw. ?! loses 10 or more points of expected score against its choice, ? 20 or more, ?? 30 or more; ! is the only good move. Expected score comes from AB-JChess’s own evaluations, fitted on 400 engine games.

AB-JChess prefers i4-d4. Black's chances by its count: 61% before, 40% after this move.

AB-JChess prefers i1-i3. Red's chances by its count: 63% before, 48% after this move.

Pikafish rated this reveal at +8. Two moves later, by AB-JChess’s count, Red is down to about one chance in four, and Black goes on to stalemate the general.

The only good move by AB-JChess's count: its next best, c4-e6, drops Red from 43% to 6%.