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2. Rook and bishop versus rook endgame - Wikipedia

   en.wikipedia.org/wiki/Rook_and_bishop_versus...

   Being a five-piece endgame, the rook and bishop versus rook endgame has been fully analysed using computers. Endgame tablebases show that 40.1% of the legal positions with this material are theoretical wins, but that includes many unnatural positions that are unlikely to occur in games.

3. Wrong rook pawn - Wikipedia

   en.wikipedia.org/wiki/Wrong_rook_pawn

   In a king and pawn versus king endgame with a rook pawn, the defending king only has to get in front of the pawn to draw the game. In contrast, in the endgame with a bishop and the wrong rook pawn, getting the defending king in front of the pawn will not necessarily draw. In this position from Edmar Mednis, White wins if it is their move. 1 ...

4. Wrong bishop - Wikipedia

   en.wikipedia.org/wiki/Wrong_bishop

   A rook and a rook pawn always win against the wrong bishop, as in this position. The defender has the wrong bishop if it is the one on the same color as the pawn's promotion square. The winning procedure is to give up the pawn at the right time to get to a winning rook versus bishop endgame. If the bishop was on the other color, the defender ...

5. Rook and pawn versus rook endgame - Wikipedia

   en.wikipedia.org/wiki/Rook_and_pawn_versus_rook...

   Positions with two rook pawns are often a draw. A position with a rook pawn and bishop pawn on the same side of the board is usually a draw if they are not far advanced, but the defense is difficult. Overall, the rook pawn and bishop pawn win in 61% of games. [85] The rook pawn and bishop pawn almost always win if they both reach their sixth rank.

6. Chess piece relative value - Wikipedia

   en.wikipedia.org/wiki/Chess_piece_relative_value

   just under 2 pawns if it is unpaired R vs N, but less if the rook is paired, and a bit less still if the minor piece is an unpaired bishop; one pawn if it is paired R vs paired B; 2B + P = R + N with extra rooks on the board; 2N > R + 2P, especially with an extra pair of rooks; 2B = R + 3P with extra rooks on the board

7. Fortress (chess) - Wikipedia

   en.wikipedia.org/wiki/Fortress_(chess)

   Note that the bishop and wrong rook pawn ending (i.e. where the pawn is a rook pawn whose promotion square is the color opposite to that of the bishop) in the diagram is a draw even if the pawn is on the seventh rank or further back on the a-file. Heading for a bishop and wrong rook pawn ending is a fairly common drawing resource available to ...

8. The exchange (chess) - Wikipedia

   en.wikipedia.org/wiki/The_exchange_(chess)

   The modern consensus is that the side with the two bishops need at least a pawn when facing rook and knight, even then the side with the two bishops is underdog. William Steinitz reckoned that often two bishops and two pawns are superior against rook and knight. A rook and bishop usually work better together than a rook and knight in the endgame.

9. Opposite-colored bishops endgame - Wikipedia

   en.wikipedia.org/wiki/Opposite-colored_bishops...

   The attacking rook can have influence on both colors of squares. Sometimes exchanging the rook for the defender's bishop breaks a fortress. Sometimes the defending bishop can be sacrificed for pawns to result in a rook and bishop versus rook endgame that can be drawn. The most difficult problem encountered by the stronger side is usually in ...