What puzzles were set at the 2nd Annual World Puzzle Championship (Brno, Czech Republic, 1993), and how did...

The 2nd Annual World Puzzle Championship was held this weekend in Brno,
Czech Republic.  Thirteen teams competed:  Canada, the USA, Japan,
Argentina, Netherlands, Germany, Poland, Czech, Slovak, Hungary,
Croatia, Slovenia, Turkey.

There was an individual competition in 6 rounds.  The 4 individual
scores were added to get a team total, then a 7th round was added in
which the 4 players from a country solved as a team.  In rounds 1, 3
and 5, a number of puzzles was presented all at once with an overall
time limit.  In rounds 2, 4 and 6, each puzzle was individually timed.
For some of these puzzles, a speed bonus was given for the fastest few
solvers.

Here is a list of all the puzzles, followed by a list of all the score
obtained.  I've recorded the names of the top 10 individuals, plus the
remaining North Americans.

In the team competition, the Czech Republic finished first with ~2600
points, followed by the USA with ~2300, Canada with ~2200 and Poland
about 20 points (!) behind Canada.

10 1.01 Ladybirds          spot the pattern
15 1.02 Minicross          7-word criss-cross over a binary alphabet
10 1.03 Legs and Heads     match the animals' heads and feet
 5 1.04 Only Two           3-d spatial geometry
10 1.05 Snow Flakes        spot the pattern
10 1.06 Extra Friend       41 cartoons to be put into 20 pairs and an odd one
15 1.07 21                 complete the (encoded) square with line-sums 21
15 1.08 Counting Squares   just like it sounds
 5 1.09 Find Your Way      Hamilton path in a 12x12 grid with 17 black squares
10 1.10 Dominoes           given a grid of numbers, find a partition into
                           double-six
10 1.11 Queen of Hearts    spot the differences
 5 1.12 Find the Pair      of 20 patterns, only 2 are identical
--
120

30 2.01 Battleships        place a fleet in a 10x10 grid given linesums
20 2.02 Yes-No             20-question memory test after 1 minute of study
15 2.03 Town Square        find minimal decompostition into squares of a shape
12 2.04 Sounds             audio memory test
15 2.05 Logical Labyrinth  find a path using 1-25 in a 7x7 grid of numbers
--
92

15 3.01 Leaves             spot the pattern
15 3.02 Swimmers           very clever logic problem
 5 3.03 Reader             put nine cartoons in order
xx 3.04 Jumping            nice game of jumping numbers on a chessboard
15 3.05 The 16-Storey Bldg spot the pattern
10 3.06 Football           Hamilton path, connect the dots on a grid
20 3.07 Lighthouses        find the ships given some (row+column)sums
 5 3.08 How Many?          among lots of little cartoons, find how many appear
                           4 times
20 3.09 Anagram 2D         find anagrams of car marques in a grid
--
~157

15 4.01 Multiplication Problem                        like cross-sums, but
                                                      multiply
10 4.02 Forty Constellations (+up to 10 bonus)        40-word word-search
20 4.03 Do You Speak Esperanto? (+up to 10 bonus)     40-word criss-cross
20 4.04 International Crossword Puzzle (+..10 bonus)  44-word triangular
                                                      criss-cross
--
65

20 5.01 Numerical Pentomino          partition a 9x5 grid of numbers into 17s
25 5.02 Equation                     solve (..)^4 = (.......) in unique digits
                                     0-8
25 5.03 Monitor on the Blink         .... - ... = ... in unique digits,
                                     restrictions
15 5.04 Four Moving Points           spot the pattern
15 5.05 The Multiplication Pyramid   exercise  in factoring
20 5.06 Ten Flowers                  linear equations, all solutions different
21 5.07 Lady Singer                  find hidden details in a cartoon
20 5.08 Do You Like Travelling?      pictorial geography knowldege quiz
--
161

30 6.01 Do You Play Cards? (+..10 bonus)   cross-sums
45 6.02 Treasure                           logic problem, akin to minesweeper
30 6.03 Magic Squares                      complete 7x7, 8x8 and 9x9 latin
                                           squares
--
105

60 7.01 Stamps             2D spatial logic problem
40 7.02 Reconstruction     2D spatial logic problem
90 7.03 Map                30 question world geography quiz
60 7.04 Flags              20 question flags of nations quiz

50 7.05 Card Circle (+..15 bonus)  logic problem (flawed and discarded)

40 7.06 Chinese Vases      3 identically-patterned jigsaws, jumbled up
--
340

individual totals out of about 700 (plus 40 points in speed-bonuses)

658 cze Rob Babilon
631 usa Wei-Hwa Huang [Editor: spelled "Wei-Hua" in the original]
629 cze Pavel Kalhous
612 usa Ron Osher
574 tur Kamer Alyanakyan
572 usa Dan Johnson
564 can Julian West
564 pol Stajszczak
563 can David Samuel
540 arg Pavlo Milrud
519 cze
518 cze
516 jap
509 pol
498 jap
490 pol
482 ska
481 hun
471 ska
451 tur
450 jap
444 hun
440 can Marie Vasiliou
438 arg
436 net
429 arg
426 cro
426 tur
414 hun
413 tur
407 slo
405 ger
402 cro
395 usa Larry Baum
392 pol
391 net
385 jap
381 slo
378 ska
369 hun
366 net
359 can Darren Rigby
349 cro
303 slo
302 ger
295 ska
288 cro
273 ger
237 arg
226 net
202 slo
199 ger

[ Editor: the histogram below is reproduced as it appears in the
  original, where its long lines were wrapped. ]

                  x         x                 x   x x
                x x         x   x x     x x x x x x x x   x           x
x   x x x       x x   x     x x x x x   x x x x x x x x x x x x       x x x x
    x x
5 4 3 2 1 .59 8 7 6 5 4 3 2 1 .49 8 7 6 5 4 3 2 1 .39 8 7 6 5 4 3 2 1 .29 8 7 6
5 4 3 2

-- Julian West <west@euclid.math.temple.edu>, posted by jim miller
   <jgm@umcc.umich.edu>, October 1993