Win Without a Queen against Queen

g6 and white wins by force after Kh8 and Bg3 planning Rh4.

Even without the threats white should win with R + 2 pieces against a queen.

 1.g6+! Kh8 2.Bg3 Qg5+ and gives changes for black. 2.Bf4 is better.

 That blocks the 4th rank.  Bg3 serves the purpose of blocking the queen from the first rank too.  white will end up threatening mate with the light squared bishop because black will bring the bishop back and try to block the check with it.

This is a tricky one to play out - there are lots of tactical tricks to watch out for.

1. g6 is certainly a good way to start, followed by Kh8. Now there are two ways to get at the king - from the h file, and along the back rank. 2. Bg3 loses ground to Qg5+ and then QxNe7. 2. Bf4 blocks the check option, and it is noticeable how little black can do in this position. However, white's attack is not clear either. Simpler might by 2. Rxc4 threatening Rc8#. Now if Qg5+, white needs to be careful due to the threat of Qg1, so 3. Rf4 is necessary so that the f pawn is protected. I'm still not completely sure how to proceed though.

Another starting option, which avoids giving black the useful option Qg5+ would be to play 1. Bf4 first. Now g6+ is more dangerous, and I can't see a good continuation for black.

I checked through both options with my PC, and it generally agrees that black has few options, but white must play carefully. In the line 1. g6+ Kh8 2. Bf4 the software gave d5 as the only reasonable move. The line continues 3. Nxd5 Bf3 4. Bg3 Qh1+ 5. Kd2 BxNd5 6. Rh4+ QxRh4 7. BxQh4 and white should be quite comfortable.

In the line 1. Bf4 d5 is also suggested (presumably to slow down whites progress on to the back rank) then as above 2. Nxd5 Bf3 but now 3. Kd2 c3+ 4. Nxc3 and with the white king safe now, and with the rook have a clear run to the back rank, and the a4 bishop to help, the net will close in on the black king.

Obviously there are lots of lines I have left out as it is a complex position. So despite white having considerably more material, they still have to play accurately to win.

Nice position - thanks for sharing it.

Good analyses for Ben TAl

1.g6! Kh8 2.Bf4 d5 3.Nxd5 Bf3 4.Ne2 and black will lose the game.

i played Rxc4 then waiting for black to paly. he made Qg5+ then i blcok it by Rook!. then i forced black to play limited options and won!

 Hello, this would lead to loss for white - checkmate because of whites own bishop on f4 block an escape route.

 How white would lose??

 g6! Kh8 2.Bf4 d5 3.Nxd5 Bf3 4.Ne2 (typo? Ne7 I assumed you meant) would continue:

4.... Qh1+ 5. Kd2 Qd1+ 6. Ke3 Qe2++

Unless you meant 4. Ne3?

 Sorry.....Yes, I meant 4.Ne3, N can't move to the e2.

4...Qh1+ 5.Nd1