Bg8+, Kxg8, and finally Qh7# so you win.
I do not understand this move
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In that instance you are sacrificing your Bishop to call Check with your Rook, which forces the only move Black can do which is take the Bishop with the King then you move your Queen to h7 for Checkmate.
Dec 10, 2020
0
#6
The replies are correct. In addition, you might want to know about the train of thought that leads to making that move. And the problem is a bit more complex than suggested, but the solution is still correct. If I may...
1. I wish the positions of my Queen and Bishop were reversed, because then it would be checkmate. If only the Bishop weren't there—I don't need it.
2. Wait, if I play Bg8+, it's a forcing move (a check), and Black has only a few moves in response. (Forcing lines of play are easy to calculate in advance, and if you aim for the King you'd best not miss.)
- ... Bh6 blocks the Rook's check, but allows Qh7++. (Think flexibly—instead of your Rook protecting your Queen, now your Bishop and Queen protect each other.)
- ... Bh4 allows the same checkmate.
- ... Qh2 or Qh3 lets me just take her with check. Black loses the Queen for nothing.
- ... Qh4 also blocks the Rook's check, and now the Black Bishop protects her, but still allows the mate one move later: after Rxh4+, either the King takes the Bishop, allowing Qh7++, or Black's Bishop takes White's Rook and allows Qh7++. The game is over either way.
3. All those lines end with a checkmate when I play Qh7!
Hello guys,
New to chess here. I am doing some problems (with the rating) and cannot figure out this move the computer asked me to do. I am playing the whites and the computer ask me to go BG8. But to me that is a bad move as the king will be able to take my bishop. Do you know why ? Thanks.