The instructions should be clearer as to whether the engine is visible at all times or only accessed in the case of a challenge. Seems like it would be a hassle to do this except in a mode where the engine is visible at all times...
> Starting from move 2, players can claim their opponent’s last move was a top engine move. This immediately ends the game.
> Claims are settled by asking the chess engine to evaluate the position before the contested move. If the chess engine suggests the opponent’s move, the claimant wins the game. If not, their opponent wins instead.
So your suggestion would be a completely different game.
