Bishop stronger than rook ?!

[Nordlandia]

Here stockfish choose to keep the dragon bishop than capture the rook in the corner. Rook need open files to be effective.

[d]r2q2k1/1ppb1p1p/2np2p1/p7/2P1NP2/1P4PP/Pb2N3/R2Q1RK1 w - - 0 19

[pgn][Event "DEN-ch 2019"] [Site "Svendborg"] [Date "2019.04.21"] [Round "9.3"] [White "Olsen, Filip Boe"] [Black "Hansen, Sune Berg"] [Result "*"] [WhiteElo "2414"] [BlackElo "2590"] [Annotator "ChessBase"] [PlyCount "59"] [EventDate "2019.04.13"] [EventType "tourn"] [EventCountry "DEN"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] [TimeControl "40/5400+30:1800+30"] 1. d4 {0} d6 {5} 2. Nf3 {0} g6 {17} 3. g3 {279} Bg7 {52} 4. Bg2 {11} Nf6 {18} 5. O-O {12} O-O {12} 6. c4 {11} Nbd7 {14} 7. Nc3 {52} e5 {14} 8. e4 {358} exd4 {38} 9. Nxd4 {14} Re8 {4} 10. Be3 {668} Ne5 {1759} 11. b3 {479} Nfg4 {520} 12. Bc1 {329} Nc6 {406} 13. Nde2 {241} a5 {420} 14. Bb2 {199} Bd7 {182} 15. h3 {129 } Nf6 {21} 16. f4 {783} Nxe4 {279} 17. Bxe4 {51} Rxe4 {6} 18. Nxe4 {11} Bxb2 {5 } 19. Rb1 {11} Bg7 {22} 20. Nf2 {1012} a4 {413} 21. Qd2 {188} axb3 {137} 22. axb3 {1} Ra3 {199} 23. g4 {437} b6 {116} 24. Rfe1 {190} h6 {167} 25. Kh2 {85} Qa8 {104} 26. Qe3 {153} Ra2 {45} 27. Kg3 {15} Qd8 {339} 28. b4 {65} h5 {47} 29. Rb3 {82} Bf6 {88} 30. g5 {22} * [/pgn]

[Guenther]

Here stockfish choose to keep the dragon bishop than capture the rook in the corner. Rook need open files to be effective.

That's not the reason, obviously Black would have too much black weaknesses around his lone K, vs. Q+N attack from White.

[Nordlandia]

Here stockfish choose to keep the dragon bishop than capture the rook in the corner. Rook need open files to be effective.

That's not the reason, obviously Black would have too much black weaknesses around his lone K, vs. Q+N attack from White.

I didn't notice that

[tpoppins]

Here stockfish choose to keep the dragon bishop than capture the rook in the corner.

It is White's move, so capturing the rook is not an option.

[Guenther]

Here stockfish choose to keep the dragon bishop than capture the rook in the corner.

It is White's move, so capturing the rook is not an option.

Well I assumed Black to move of course after the OP message w/o looking at the FEN at all ;-)

[Nordlandia]

After let say Kh2 black keeps the bishop.

[MikeGL]

I have seen many Lc0 vs Stockfish games where minor wins, with equal pawns on board. There was also a nice popular study said to have originated at armenia where a lone B defeats a Q. In short, it all depends on position.