Quick answer
Minor Piece and Pawn versus Rook is an endgame technique: Lucena bridge-building. Work from the first evidence position for Minor Piece and Pawn versus Rook, and begin by testing Kg7.
Begin from Kg7 in 7k/4r3/2K5/5B2/8/8/8/R7 b - - 2 2. Count the material, king routes, promotion squares and reserve tempi before applying a theoretical rule. The evidence answer is: Minor Piece and Pawn versus Rook: use the king's shelter and a checking-distance bridge before advancing the pawn. Candidate line: Kg7.
In the Minor Piece and Pawn versus Rook example, notice: side Black; pieces Black king h8, Black rook e7, White king c6, White bishop f5, White rook a1; legal first moves Kg7, Kg8, Re8, Rf7, Rg7, Rh7, Re6+, Re5. Do not export this inventory beyond the present example; it is a local observation, not a doctrine.
Material and result question
The first evidence board tests Lucena bridge-building; the second board tests Lucena bridge-building. Sequence A is direct FEN setup. Sequence B is direct FEN setup. Compare them only after setting both FENs. Hub vocabulary: Chess Wiki · Endgames hub. Then compare Material Values with Two Rooks Versus Rook, Fortress In Chess Endgames, Fortress In Queen Endings around a knight route that changes the blockade.
The two inventories make the distinction concrete. A contains side Black; pieces Black king h8, Black rook e7, White king c6, White bishop f5, White rook a1; legal first moves Kg7, Kg8, Re8, Rf7, Rg7, Rh7, Re6+, Re5; B contains side White; pieces Black king h8, White rook a7, White pawn c7, Black rook d7, White king c6; legal first moves Ra8+, Rb7, Ra6, Ra5, Ra4, Ra3, Ra2, Ra1. Compare the side to move before comparing the labels in the context of the moment to trade the last pawn.
Topic dossier for this page and board pair r1:7k | r2:4r3 | r3:2K5 | r4:5B2 | r5:8 | r6:8 | r7:8 | r8:R7 / r1:7k | r2:R1Pr4 | r3:2K5 | r4:8 | r5:8 | r6:8 | r7:8 | r8:8: start with a knight route that changes the blockade; then test the moment to trade the last pawn; keep the king's route around a pawn chain separate from king opposition on the critical file; use checking distance behind the passer as the transfer check; and reserve the bishop's color complex for the exception.
Conversion or defense plan
On the first board, calculate Kg7 after Kg7 and write down the opponent's best reply around a knight route that changes the blockade. On the second board, calculate Ra8+ after Ra8+ and check the moment to trade the last pawn. Separate the practical conversion question from the result question; side to move and one checking distance can change the conclusion. In this case the useful condition is the bishop's color complex.
Key claim: Minor Piece and Pawn versus Rook is illustrated here by Lucena bridge-building; the first concrete test is Kg7. The board anchor is 7k/4r3/2K5/5B2/8/8/8/R7; the example is intentionally narrower than the topic label and should not be generalised without checking the surrounding position..
Practical boundary: To answer “What exact king, pawn, and move-order conditions decide minor piece and pawn versus rook, and how should each side play them?”, compare the recorded setup with Ra8+ and the opponent's reply. The decision is useful only when the stated condition survives that concrete test on board 7k/R1Pr4/2K5/8/8/8/8/8. The evidence records No tablebase outcome is asserted by this generated record; verify the exact FEN before publication and the second board signature r1:7k | r2:R1Pr4 | r3:2K5 | r4:8 | r5:8 | r6:8 | r7:8 | r8:8. The false-positive test is whether the king's route around a pawn chain appears without king opposition on the critical file, so the conclusion is useful only when the stated condition survives that concrete test.
Evidence positions
example-1: Lucena bridge-building
Show answer
Minor Piece and Pawn versus Rook: use the king's shelter and a checking-distance bridge before advancing the pawn. Candidate line: Kg7.
Why this position is here: Minor Piece and Pawn versus Rook is represented by Lucena bridge-building. This is a direct FEN setup with board anchor 7k/4r3/2K5/5B2/8/8/8/R7; no opening history is inferred from the diagram.
FEN: 7k/4r3/2K5/5B2/8/8/8/R7 b - - 2 2
Question: What is the first concrete decision in this minor piece and pawn versus rook position?
Answer cue: Minor Piece and Pawn versus Rook: use the king's shelter and a checking-distance bridge before advancing the pawn. Candidate line: Kg7. The first candidate to test is Kg7. Replay Kg7 on board anchor 7k/4r3/2K5/5B2/8/8/8/R7 and write down what changes after it.
Evidence boundary: No tablebase outcome is asserted by this generated record; verify the exact FEN before publication.
example-2: Lucena bridge-building
Show answer
Minor Piece and Pawn versus Rook: use the king's shelter and a checking-distance bridge before advancing the pawn. Candidate line: Ra8+.
Why this position is here: Minor Piece and Pawn versus Rook is represented by Lucena bridge-building. This is a direct FEN setup with board anchor 7k/R1Pr4/2K5/8/8/8/8/8; no opening history is inferred from the diagram.
FEN: 7k/R1Pr4/2K5/8/8/8/8/8 w - - 2 2
Question: What is the first concrete decision in this minor piece and pawn versus rook position?
Answer cue: Minor Piece and Pawn versus Rook: use the king's shelter and a checking-distance bridge before advancing the pawn. Candidate line: Ra8+. The first candidate to test is Ra8+. Replay Ra8+ on board anchor 7k/R1Pr4/2K5/8/8/8/8/8 and write down what changes after it.
Evidence boundary: No tablebase outcome is asserted by this generated record; verify the exact FEN before publication.
example-3: Lucena bridge-building
Show answer
Minor Piece and Pawn versus Rook: use the king's shelter and a checking-distance bridge before advancing the pawn. Candidate line: Ra8+.
Why this position is here: Minor Piece and Pawn versus Rook is represented by Lucena bridge-building. This is a direct FEN setup with board anchor 6k1/2P4r/R1K5/8/8/8/8/8; no opening history is inferred from the diagram.
FEN: 6k1/2P4r/R1K5/8/8/8/8/8 w - - 2 2
Question: What is the first concrete decision in this minor piece and pawn versus rook position?
Answer cue: Minor Piece and Pawn versus Rook: use the king's shelter and a checking-distance bridge before advancing the pawn. Candidate line: Ra8+. The first candidate to test is Ra8+. Replay Ra8+ on board anchor 6k1/2P4r/R1K5/8/8/8/8/8 and write down what changes after it.
Evidence boundary: No tablebase outcome is asserted by this generated record; verify the exact FEN before publication.
Reading the line
Read the first example (id example-1) as a complete record: continuation Kg7, source tablebase. This is a direct FEN setup with board anchor 7k/4r3/2K5/5B2/8/8/8/R7; no opening history is inferred from the diagram. If A does not expose Lucena bridge-building, correct the evidence before relying on the prose.
Read the second example (id example-2) separately: continuation Ra8+, source tablebase. Its feature is Lucena bridge-building; inventory side White; pieces Black king h8, White rook a7, White pawn c7, Black rook d7, White king c6; legal first moves Ra8+, Rb7, Ra6, Ra5, Ra4, Ra3, Ra2, Ra1. Compare what changes between Kg7 and Ra8+.
Boundary cases
The main mistake to avoid with Minor Piece and Pawn versus Rook is applying a remembered endgame rule while ignoring side to move, king placement or an unverified result. In A, the missing condition must be located in r1:7k | r2:4r3 | r3:2K5 | r4:5B2 | r5:8 | r6:8 | r7:8 | r8:R7 after Kg7; in B, test it against r1:7k | r2:R1Pr4 | r3:2K5 | r4:8 | r5:8 | r6:8 | r7:8 | r8:8 after Ra8+.
For Minor Piece and Pawn versus Rook, the first board's evidence boundary (after Kg7) is No tablebase outcome is asserted by this generated record; verify the exact FEN before publication. The second board's evidence boundary for Minor Piece and Pawn versus Rook is No tablebase outcome is asserted by this generated record; verify the exact FEN before publication. If a trusted source or careful calculation changes the conclusion around checking distance behind the passer, update both the evidence record and this article.
Practice from a real game
play the position for both sides, record the critical tempo, and verify the exact FEN against the cited tablebase before publication. Start with A's side to move and r1:7k | r2:4r3 | r3:2K5 | r4:5B2 | r5:8 | r6:8 | r7:8 | r8:R7; record two candidates, the reply to Kg7 and the correction. Repeat with B's side to move and r1:7k | r2:R1Pr4 | r3:2K5 | r4:8 | r5:8 | r6:8 | r7:8 | r8:8; the changed board tests transfer rather than diagram memory.
After the drill, compare your notes with Two Rooks Versus Rook, Fortress In Chess Endgames, Fortress In Queen Endings through king opposition on the critical file. Keep A's rejected alternative beside B's chosen line Ra8+; this shows whether the conclusion survived a new board signature.
Sources and scope
Sources for Minor Piece and Pawn versus Rook: Syzygy tablebase verification reference, 1chess.online editorial scope. Source ids are tablebase, original-analysis. Primary evidence hook: tablebase. Comparisons and practice notes are editorial. Evidence revision: 2026-08-remediation-r2.
Scope note for board pair r1:7k | r2:4r3 | r3:2K5 | r4:5B2 | r5:8 | r6:8 | r7:8 | r8:R7 / r1:7k | r2:R1Pr4 | r3:2K5 | r4:8 | r5:8 | r6:8 | r7:8 | r8:8: this page does not claim that Kg7 is an engine principal variation, that an exact endgame result is verified when the evidence says it is not, or that a tool output replaces human calculation. The conclusion is limited to the recorded boundary and the exception the king's route around a pawn chain.