From this game : https://www.chess.com/game/live/127154423799
I didn't find the best move.
your board doesn't have numbers, but I think knight to the leftmost file is best.
Sorry
Ne2 is the best move. Nd5 is not as good because you sac the knight. Staying on e5 is an option for the queen:
With best move Ne2 :
Other variant with Ne2 :
Maybe these are not the best moves. But to avoid checkmate the Queen either stays on Qe5 or moves to Qh5 (if Nd5 she can - if Ne2 is played then Qh5 Nxf4 and the queen is either lost or can't prevent e5 then checkmate is coming).
Best move is Ne2 +- (3.90) . But Nd5 wins too +/- 1.60) All other are -/+ (-1.00 or more)
variant for Nd5: 1.Nd5 cxd5 2.Bxe5 Bxe5 3.exd5+ Kg7
4.Qe2! (i saw it as i said my comment. Then i calculated black takes Rook on a1 and c3 and thought black king is weak. My friend confirmed me +- (3.90) !!! but only if black finds best defense there...
So best defense after 4.Qe2! is Nf6! 5. Qxe5 Re8 6.Qxe8 Ne8 7.c4 (1.50-1.60)
Augustin, I hope it is OK that I use this forum that you created for a guess-the-move (if not, please delete). If so, find White's move from this 960 game (details: White has not castled but the c-rook has moved, whereas the king and f-rook have not moved):
(By the way, I didn't make the best move and offered a draw after that move. Luckily, my opponent accepted.)
I'm thinking it has something to do with Qc7, but I feel like it might be a bit early. Maybe the knights?
Qc7 is a great idea but I'm worried about Qxe2+ !! followed by Bd3 +... but I can't find the mate for Black. My guess is Nce3.
Ok, no one else said anything
So, Qc7 was right. Good board vision, Jack . It is actually not possible to save the dark-square bishop, which was the scariest piece for me (since I had given mine up to win a pawn).
Qc7 is threatening checkmate and the bishop. The f-rook cannot protect stop the checkmate because the d-rook hangs with check. Neither the d-rook nor their queen can stop the checkmate and guard the bishop. Remember the bishop can deliver checkmate (Bb7+). Black's best move is the desperate Rd1+ to get that rook out of danger and gain a tempo.
I'll post the answer later.