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Minor cleanup

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Mark
2023-12-06 14:03:22 -08:00
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commit e4ebdac31a
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20
Advanced/Retrograde Analysis/parts/03 medium.tex
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@ -3,7 +3,7 @@
% Sherlock, A matter of direction
\problem{A matter of direction}
%\difficulty{3}{5}
\starvalue{4}
\onestars{4}
The results of a game of chess are shown below. \par
Did White start on the north or south side of the board? \par
@ -18,7 +18,7 @@ Did White start on the north or south side of the board? \par
\begin{hintlist}
Part 1: \tab\threestars{0}{1}{3} \par
\hintcontentnew{
\hintcontent{
The bishop on H1 is important. How did White deliver this check?
}
\vspace{2mm}
@ -70,13 +70,13 @@ The white king has again become invisible. Find him. \par
\begin{hintlist}
Part 1: \tab\threestars{0}{2}{6} \par
\hintcontentnew{
\hintcontent{
Either the white king is on B3, or Black is in check. \par
First, show that the latter implies the former.
}
Part 2: \tab\threestars{2}{2}{4} \par
\hintcontentnew{
\hintcontent{
Moving back in time, you'll need to add two pieces to the board (not counting the king). \par
They have been captured!
}
@ -165,7 +165,7 @@ White to move. Which side of the board did each color start on? \par
\begin{hintlist}
Part 1: \tab\threestars{0}{5}{5} \par
\hintcontentnew{
\hintcontent{
Double-checks make all positions seem impossible... \par
Try E1 and F2 anyway. Can you add pieces to make it make sense? \par
Don't forget about promotion.
@ -235,19 +235,19 @@ What is it, and what is its color? \par
\begin{hintlist}
Part 1: \tab\threestars{0}{1}{19} \par
\hintcontentnew{
\hintcontent{
What color is the missing piece? Count captures.\par
Look at the region bounded by A1 and B3. How did the bishop get there?
}
Part 2: \tab\threestars{1}{1}{18} \par
\hintcontentnew{
\hintcontent{
What was White's last move? \par
What does this tell us about White's king?
}
Part 3: \tab\threestars{2}{1}{17} \par
\hintcontentnew{
\hintcontent{
Now, look at the region bounded by G1 and H3. \par
In Part 1, we found that all of White's pieces were captured---including the H1 rook. \par
How did it get off its home square to be captured? \par
@ -255,14 +255,14 @@ What is it, and what is its color? \par
}
Part 4: \tab\threestars{3}{2}{15} \par
\hintcontentnew{
\hintcontent{
The black bishop on H2 must have been promoted on G1. \par
Which pawn was it, and how did it get there? (Remember, we counted captures in Part 1). \par
In what order did the cross capture by the G1 and H1 pawns occur?
}
Part 5: \tab\threestars{5}{2}{13} \par
\hintcontentnew{
\hintcontent{
Which black pieces are still missing? \par
Remember that White cannot castle through check.
}