Quick answer
Study Session Planner is a practical chess tool: Study Session Planner input/output contract. Work from the first evidence position for Study Session Planner, and begin by testing Kf8.
Begin from Kf8 in 8/5k2/8/8/4R3/4K3/8/8 b - - 3 2. State the input contract, output assumptions, edge cases and human decision that follows the tool response. The evidence answer is: Study Session Planner: state the input, expected output and the edge case before trusting the tool. Candidate line: Kf8.
In the Study Session Planner example, notice: side Black; pieces Black king f7, White rook e4, White king e3; legal first moves Kf8, Kg8, Kg7, Kg6, Kf6. Those legal moves describe the current example board; they do not define a permanent rule set.
Input and output contract
The first evidence board tests Study Session Planner input/output contract; the second board tests Study Session Planner input/output contract. If both boards list a construction string, read A as direct FEN setup and B as direct FEN setup. Look up neighbouring ideas via the Chess Wiki and the Notation And Tools hub. Then compare Fen Viewer with Game Review Worksheet, Move List Comparison, Candidate Move Tracker around display versus calculation.
The two inventories make the distinction concrete. A contains side Black; pieces Black king f7, White rook e4, White king e3; legal first moves Kf8, Kg8, Kg7, Kg6, Kf6; B contains side Black; pieces Black king f7, White rook e4, White king e3; legal first moves Kf8, Kg8, Kg7, Kg6, Kf6. Compare the side to move before comparing the labels in the context of the handoff to deeper analysis.
Topic dossier for this page and board pair r1:8 | r2:5k2 | r3:8 | r4:8 | r5:4R3 | r6:4K3 | r7:8 | r8:8 / r1:8 | r2:5k2 | r3:8 | r4:8 | r5:4R3 | r6:4K3 | r7:8 | r8:8: start with display versus calculation; then test the handoff to deeper analysis; keep a comparison with a known result separate from a repeatable workflow; use side-to-move interpretation as the transfer check; and reserve the field that must be preserved for the exception.
Human decision after the result
On the first board, calculate Kf8 after Kf8 and write down the opponent's best reply around display versus calculation. On the second board, calculate Kf8 after Kf8 and check the handoff to deeper analysis. Use the tool to expose a position or comparison, then audit the input and decide what the output does and does not establish. In this case the useful condition is the field that must be preserved.
Key claim: Study Session Planner is illustrated here by Study Session Planner input/output contract; the first concrete test is Kf8. The board anchor is 8/5k2/8/8/4R3/4K3/8/8; the example is intentionally narrower than the topic label and should not be generalised without checking the surrounding position..
Practical boundary: To answer “How can a player use study session planner with valid inputs, meaningful outputs, and a safe fallback when the tool is uncertain?”, compare the recorded setup with Kf8 and the opponent's reply. The decision is useful only when the stated condition survives that concrete test on board 8/5k2/8/8/4R3/4K3/8/8. The evidence records Illustrative evidence for the stated mechanism; it is not a claim that the candidate move is forced or best in every position and the second board signature r1:8 | r2:5k2 | r3:8 | r4:8 | r5:4R3 | r6:4K3 | r7:8 | r8:8. The false-positive test is whether a comparison with a known result appears without a repeatable workflow, so the conclusion is useful only when the stated condition survives that concrete test.
Evidence positions
example-1: Study Session Planner input/output contract
Show answer
Study Session Planner: state the input, expected output and the edge case before trusting the tool. Candidate line: Kf8.
Why this position is here: Study Session Planner is represented by Study Session Planner input/output contract. This is a direct FEN setup with board anchor 8/5k2/8/8/4R3/4K3/8/8; no opening history is inferred from the diagram.
FEN: 8/5k2/8/8/4R3/4K3/8/8 b - - 3 2
Question: What is the first concrete decision in this study session planner position?
Answer cue: Study Session Planner: state the input, expected output and the edge case before trusting the tool. Candidate line: Kf8. The first candidate to test is Kf8. Replay Kf8 on board anchor 8/5k2/8/8/4R3/4K3/8/8 and write down what changes after it.
Evidence boundary: Illustrative evidence for the stated mechanism; it is not a claim that the candidate move is forced or best in every position.
Reading the test case
Read the first example (id example-1) as a complete record: continuation Kf8, source pgn-specification. This is a direct FEN setup with board anchor 8/5k2/8/8/4R3/4K3/8/8; no opening history is inferred from the diagram. If A does not expose Study Session Planner input/output contract, correct the evidence before relying on the prose.
Read the second example (id example-1) separately: continuation Kf8, source pgn-specification. Its feature is Study Session Planner input/output contract; inventory side Black; pieces Black king f7, White rook e4, White king e3; legal first moves Kf8, Kg8, Kg7, Kg6, Kf6. Compare what changes between Kf8 and Kf8.
Failure modes
The main mistake to avoid with Study Session Planner is trusting a convenient output without checking the position, input format or limitations hidden by the interface. In A, the missing condition must be located in r1:8 | r2:5k2 | r3:8 | r4:8 | r5:4R3 | r6:4K3 | r7:8 | r8:8 after Kf8; in B, test it against r1:8 | r2:5k2 | r3:8 | r4:8 | r5:4R3 | r6:4K3 | r7:8 | r8:8 after Kf8.
For Study Session Planner, the first board's evidence boundary (after Kf8) is Illustrative evidence for the stated mechanism; it is not a claim that the candidate move is forced or best in every position. The second board's evidence boundary for Study Session Planner is Illustrative evidence for the stated mechanism; it is not a claim that the candidate move is forced or best in every position. If a trusted source or careful calculation changes the conclusion around side-to-move interpretation, update both the evidence record and this article.
Practice protocol
run the workflow on a known position, one edge case and one invalid input; save the result and the reason for each outcome. Start with A's side to move and r1:8 | r2:5k2 | r3:8 | r4:8 | r5:4R3 | r6:4K3 | r7:8 | r8:8; record two candidates, the reply to Kf8 and the correction. Repeat with B's side to move and r1:8 | r2:5k2 | r3:8 | r4:8 | r5:4R3 | r6:4K3 | r7:8 | r8:8; the changed board tests transfer rather than diagram memory.
After the drill, compare your notes with Game Review Worksheet, Move List Comparison, Candidate Move Tracker through a repeatable workflow. Keep A's rejected alternative beside B's chosen line Kf8; this shows whether the conclusion survived a new board signature.
Sources and scope
Sources for Study Session Planner: 1chess.online editorial scope, Portable Game Notation Specification. Source ids are original-analysis, pgn-specification. Primary evidence hook: pgn-specification. Comparisons and practice notes are editorial. Evidence revision: 2026-08-remediation-r2.
Scope note for board pair r1:8 | r2:5k2 | r3:8 | r4:8 | r5:4R3 | r6:4K3 | r7:8 | r8:8 / r1:8 | r2:5k2 | r3:8 | r4:8 | r5:4R3 | r6:4K3 | r7:8 | r8:8: this page does not claim that Kf8 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 a comparison with a known result.