Reworked scoring
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@ -3,7 +3,7 @@
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% Sherlock, A matter of direction
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\problem{A matter of direction}
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%\difficulty{3}{5}
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\starvalue{5}
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\starvalue{4}
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The results of a game of chess are shown below. \par
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Did White start on the north or south side of the board? \par
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@ -17,8 +17,12 @@ Did White start on the north or south side of the board? \par
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}
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\begin{hintlist}
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Hint 1:
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\hintcontent{2}{5}{The bishop on H1 is important. How did White deliver this check?}
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Part 1: \tab\threestars{0}{1}{3} \par
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\hintcontentnew{
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The bishop on H1 is important. How did White deliver this check?
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}
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\vspace{2mm}
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Done: \tab\threestars{1}{3}{0}
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\end{hintlist}
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\begin{solution}
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@ -65,21 +69,23 @@ The white king has again become invisible. Find him. \par
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\begin{hintlist}
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Hint 1:
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\hintcontent{3}{8}{
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Part 1: \tab\threestars{0}{2}{6} \par
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\hintcontentnew{
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Either the white king is on B3, or Black is in check. \par
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First, show that the latter implies the former.
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\vspace{2mm}
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}
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Hint 2:
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\hintcontent{2}{5}{
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Part 2: \tab\threestars{2}{2}{4} \par
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\hintcontentnew{
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Moving back in time, you'll need to add two pieces to the board (not counting the king). \par
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They have been captured!
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\vspace{2mm}
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}
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\vspace{2mm}
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Done: \tab\threestars{4}{4}{0}
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\end{hintlist}
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\makeatletter
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\if@solutions
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\vfill
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@ -158,12 +164,15 @@ White to move. Which side of the board did each color start on? \par
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}
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\begin{hintlist}
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Hint 1:
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\hintcontent{4}{10}{
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Part 1: \tab\threestars{0}{5}{5} \par
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\hintcontentnew{
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Double-checks make all positions seem impossible... \par
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Try E1 and F2 anyway. Can you add pieces to make it make sense? \par
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Don't forget about promotion.
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}
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\vspace{2mm}
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Done: \tab\threestars{5}{5}{0}
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\end{hintlist}
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\begin{solution}
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@ -223,68 +232,46 @@ What is it, and what is its color? \par
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Kc1,Rd1,nf1,Bh1
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}
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\begin{hintlist}
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Hint 1:
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\hintcontent{1}{20}{
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Part 1: \tab\threestars{0}{1}{19} \par
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\hintcontentnew{
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What color is the missing piece? Count captures.\par
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Look at the region bounded by A1 and B3. How did the bishop get there? \par
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\note[Note]{This is Part 1}
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\vspace{2mm}
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Look at the region bounded by A1 and B3. How did the bishop get there?
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}
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Hint 2:
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\hintcontent{1}{19}{
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Part 2: \tab\threestars{1}{1}{18} \par
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\hintcontentnew{
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What was White's last move? \par
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What does this tell us about White's king? \par
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\note[Note]{This is Part 2}
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\vspace{2mm}
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What does this tell us about White's king?
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}
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Hint 3:
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\hintcontent{1}{18}{
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Part 3: \tab\threestars{2}{1}{17} \par
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\hintcontentnew{
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Now, look at the region bounded by G1 and H3. \par
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In Part 1, we found that all of White's pieces were captured---including the H1 rook. \par
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How did it get off its home square to be captured? \par
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What does this tell us about the bishop on H1? \par
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\note[Note]{This is Part 3}
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\vspace{2mm}
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}
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Hint 4:
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\hintcontent{1}{17}{
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The black bishop on H2 must have been promoted on G1. \par
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Which pawn was it, and how did it get there? (Remember, we counted captures in Part 1). \par
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In what order did the cross capture by the G1 and H1 pawns occur? \par
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\note[Note]{This is Part 4}
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\vspace{2mm}
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What does this tell us about the bishop on H1?
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}
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Hint 5:
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\hintcontent{5}{16}{
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Part 4: \tab\threestars{3}{2}{15} \par
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\hintcontentnew{
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The black bishop on H2 must have been promoted on G1. \par
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Which pawn was it, and how did it get there? (Remember, we counted captures in Part 1). \par
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In what order did the cross capture by the G1 and H1 pawns occur?
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}
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Part 5: \tab\threestars{5}{2}{13} \par
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\hintcontentnew{
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Which black pieces are still missing? \par
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Remember that White cannot castle through check.
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}
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\vspace{2mm}
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Done: \tab\threestars{7}{13}{0}
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\end{hintlist}
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%\begin{instructornote}
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% \textbf{Hints to give:} (in this order)
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% \begin{itemize}
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% \item How did the black bishop on A2 get there? \note{(Part 1)}
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% \item How many captures has Black made? \note{(Part 1)}
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% \item What color is the missing piece? \note{(Part 1)}
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% \item What was White's last move? What does this imply? \note{(Part 2)}
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% \item Which white pieces were captured? \par
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% How did they move from their starting positions? \note{(Part 3)}
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% \item How did the bishop on H2 get to where it is now? \note{(Part 3)}
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% \item Which pawn was promoted to the bishop now on H2? \note{(Part 4)}
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% \item Which black pieces are still missing? \note{(Conclusion)}
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% \item Remember that White cannot castle through check. \note{(Conclusion)}
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% \end{itemize}
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%\end{instructornote}
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\vfill
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\pagebreak
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