Quick answer
Illegal Move Penalties is a rules question: the legal-move test. Work from the first evidence position for Illegal Move Penalties, and begin by testing Kg8.
Begin from Kg8 in 5k2/8/8/8/8/4K3/4P3/8 b - - 3 2. Read the side to move, legal conditions, history fields and procedural distinction before relying on a shortcut. The evidence answer is: Illegal Move Penalties: identify checks, captures, pins and king safety before accepting a move as legal. Candidate line: Kg8.
In the Illegal Move Penalties example, notice: side Black; pieces Black king f8, White king e3, White pawn e2; legal first moves Kg8, Kg7, Kf7, Ke7, Ke8. Read those squares as a snapshot of this single board, not as a standing rule you can copy into every game.
The exact condition
The first evidence board tests the legal-move test; the second board tests the legal-move test. Sequence A is direct FEN setup. Sequence B is direct FEN setup. Compare them only after setting both FENs. The Chess Wiki and the Rules hub collect the shared vocabulary. Then compare Piece Movement with Chess Annotation Symbols, Flag Fall And Time Forfeits, Increment Versus Delay around the legal castling test.
The two inventories make the distinction concrete. A contains side Black; pieces Black king f8, White king e3, White pawn e2; legal first moves Kg8, Kg7, Kf7, Ke7, Ke8; B contains side Black; pieces Black king f6, White pawn e3, White king g3; legal first moves Ke7, Kf7, Kg7, Kg6, Kg5, Kf5, Ke5, Ke6. Compare the side to move before comparing the labels in the context of the dead-position exception.
Topic dossier for this page and board pair r1:5k2 | r2:8 | r3:8 | r4:8 | r5:8 | r6:4K3 | r7:4P3 | r8:8 / r1:8 | r2:8 | r3:5k2 | r4:8 | r5:8 | r6:4P1K1 | r7:8 | r8:8: start with the legal castling test; then test the dead-position exception; keep checkmate versus stalemate separate from the capture marker in notation; use resignation versus a draw offer as the transfer check; and reserve a claim versus an automatic draw for the exception.
Procedure and counterexample
On the first board, calculate Kg8 after Kg8 and write down the opponent's best reply around the legal castling test. On the second board, calculate Ke7 after Ke7 and check the dead-position exception. Separate what the board proves from what only the move record, clock or arbiter can establish. In this case the useful condition is a claim versus an automatic draw.
Key claim: Illegal Move Penalties is illustrated here by the legal-move test; the first concrete test is Kg8. The board anchor is 5k2/8/8/8/8/4K3/4P3/8; the example is intentionally narrower than the topic label and should not be generalised without checking the surrounding position..
Practical boundary: To answer “When is illegal move penalties legal, what exceptions matter, and how can a player verify the rule at the board?”, compare the recorded setup with Ke7 and the opponent's reply. The decision is useful only when the stated condition survives that concrete test on board 8/8/5k2/8/8/4P1K1/8/8. The evidence records The position tests the stated rule or record field; verify the relevant source when a procedural decision matters and the second board signature r1:8 | r2:8 | r3:5k2 | r4:8 | r5:8 | r6:4P1K1 | r7:8 | r8:8. The false-positive test is whether checkmate versus stalemate appears without the capture marker in notation, so the conclusion is useful only when the stated condition survives that concrete test.
Evidence positions
example-1: the legal-move test
Show answer
Illegal Move Penalties: identify checks, captures, pins and king safety before accepting a move as legal. Candidate line: Kg8.
Why this position is here: Illegal Move Penalties is represented by the legal-move test. This is a direct FEN setup with board anchor 5k2/8/8/8/8/4K3/4P3/8; no opening history is inferred from the diagram.
FEN: 5k2/8/8/8/8/4K3/4P3/8 b - - 3 2
Question: What is the first concrete decision in this illegal move penalties position?
Answer cue: Illegal Move Penalties: identify checks, captures, pins and king safety before accepting a move as legal. Candidate line: Kg8. The first candidate to test is Kg8. Replay Kg8 on board anchor 5k2/8/8/8/8/4K3/4P3/8 and write down what changes after it.
Evidence boundary: The position tests the stated rule or record field; verify the relevant source when a procedural decision matters.
example-2: the legal-move test
Show answer
Illegal Move Penalties: identify checks, captures, pins and king safety before accepting a move as legal. Candidate line: Ke7.
Why this position is here: Illegal Move Penalties is represented by the legal-move test. This is a direct FEN setup with board anchor 8/8/5k2/8/8/4P1K1/8/8; no opening history is inferred from the diagram.
FEN: 8/8/5k2/8/8/4P1K1/8/8 b - - 4 3
Question: What is the first concrete decision in this illegal move penalties position?
Answer cue: Illegal Move Penalties: identify checks, captures, pins and king safety before accepting a move as legal. Candidate line: Ke7. The first candidate to test is Ke7. Replay Ke7 on board anchor 8/8/5k2/8/8/4P1K1/8/8 and write down what changes after it.
Evidence boundary: The position tests the stated rule or record field; verify the relevant source when a procedural decision matters.
Reading the record
Read the first example (id example-1) as a complete record: continuation Kg8, source fide-laws. This is a direct FEN setup with board anchor 5k2/8/8/8/8/4K3/4P3/8; no opening history is inferred from the diagram. If A does not expose the legal-move test, correct the evidence before relying on the prose.
Read the second example (id example-2) separately: continuation Ke7, source fide-laws. Its feature is the legal-move test; inventory side Black; pieces Black king f6, White pawn e3, White king g3; legal first moves Ke7, Kf7, Kg7, Kg6, Kg5, Kf5, Ke5, Ke6. Compare what changes between Kg8 and Ke7.
Common confusions
The main mistake to avoid with Illegal Move Penalties is remembering a simplified slogan while overlooking a history field, exception or procedural condition. In A, the missing condition must be located in r1:5k2 | r2:8 | r3:8 | r4:8 | r5:8 | r6:4K3 | r7:4P3 | r8:8 after Kg8; in B, test it against r1:8 | r2:8 | r3:5k2 | r4:8 | r5:8 | r6:4P1K1 | r7:8 | r8:8 after Ke7.
For Illegal Move Penalties, the first board's evidence boundary (after Kg8) is The position tests the stated rule or record field; verify the relevant source when a procedural decision matters. The second board's evidence boundary for Illegal Move Penalties is The position tests the stated rule or record field; verify the relevant source when a procedural decision matters. If a trusted source or careful calculation changes the conclusion around resignation versus a draw offer, update both the evidence record and this article.
Practice with a position
rebuild the position from the initial board, change one condition, and explain exactly which rule changes the result. Start with A's side to move and r1:5k2 | r2:8 | r3:8 | r4:8 | r5:8 | r6:4K3 | r7:4P3 | r8:8; record two candidates, the reply to Kg8 and the correction. Repeat with B's side to move and r1:8 | r2:8 | r3:5k2 | r4:8 | r5:8 | r6:4P1K1 | r7:8 | r8:8; the changed board tests transfer rather than diagram memory.
After the drill, compare your notes with Chess Annotation Symbols, Flag Fall And Time Forfeits, Increment Versus Delay through the capture marker in notation. Keep A's rejected alternative beside B's chosen line Ke7; this shows whether the conclusion survived a new board signature.
Sources and scope
Sources for Illegal Move Penalties: FIDE Laws of Chess, 1chess.online editorial scope. Source ids are fide-laws, original-analysis. Primary evidence hook: fide-laws. Comparisons and practice notes are editorial. Evidence revision: 2026-08-remediation-r2.
Scope note for board pair r1:5k2 | r2:8 | r3:8 | r4:8 | r5:8 | r6:4K3 | r7:4P3 | r8:8 / r1:8 | r2:8 | r3:5k2 | r4:8 | r5:8 | r6:4P1K1 | r7:8 | r8:8: this page does not claim that Kg8 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 checkmate versus stalemate.