;; Classic Sliding-Block Puzzles

; Puzzle 1

display Motor-Car Problem by H. E. Dudeney, 1903
size 3 5
step 17

initial
123
#.#
..#
#.#
456

target
456
#.#
..#
#.#
123

equiv 123
equiv 456
color 1 0 255 0
color 2 0 255 0
color 3 0 255 0
color 4 255 0 0
color 5 255 0 0
color 6 255 0 0

end

; Puzzle 2

display Moving Day Puzzle by Sam Loyd, 1914
size 6 4
step 17

initial
11  AA
11  AA
2233BB
2233BB

target
    BB
    BB
    AA
    AA

color A 0 255 255
color B 0 255 0

end

; Puzzle 3

display Hughes Puzzle

size 3 4
step 21

initial
A 1
A 2
633
554

target


  A
  A

color A 0 255 255

end

; Puzzle 4

display Pennant Puzzle by L. W. Hardy, 1909 (aka Dad's Puzzle)
size 4 5
step 59

initial
zzaa
zzbb
ef
hgcc
hgdd

target



zz
zz

color z 0 255 255

end

; Puzzle 5

display Blockado by Acme Novelty, 1928
size 4 6
step 74

initial
zz11
zz22
  33
4566
4577
89bb

target




zz
zz

color z 0 255 255

end

; Puzzle 6

display 10 Block Puzzle by A. Filipiak, 1942
size 4 5
step 47

initial
AA12
AA33
  45
BB66
BB78

target
BB
BB

AA
AA

color A 255 0 0
color B 0 255 255

end

; Puzzle 7

display Ma's Puzzle by Charles L. A. Diamond, 1927
size 5 5
step 23

initial
aaamm
ccddm
beeff
bbggg
  h  

target
   mm
   bm
   bb



end

; Puzzle 8

display L'Ane Rouge (The Red Donkey) by  J. H. Fleming, 1946 (?)

size 4 5
step 81

initial
azzb
azzb
cdde
cfge
h  i

target



 zz
 zz

color z 255 0 0

end

; Puzzle 9

display Century Puzzle by John Conway, 1982

size 4 5
step 99

initial
azzb
czzd
ce d
fe g
hhii

target



 zz
 zz

color z 255 0 0

end

; Puzzle 10

display Traffic Jam Puzzle (aka Tit-Bits #4) by F. L. Babcock, 1928
size 6 5
step 132

initial
zz 33b
zz 3a4
558944
112c67
122d67

target



    zz
    zz

color z 0 255 255

end

; Puzzle 11

display Escott Puzzle by E. B. Escott, 1938
size 8 10
step 48

initial
AABB1111
AABB1133
AAAA2233
AAAA2222


4444CCCC
6644CCCC
6655DDCC
5555DDCC

target
CCCC
CCCC
DDCC
DDCC


    AABB
    AABB
    AAAA
    AAAA

color A 255 0 0
color B 255 0 0
color C 0 255 0
color D 0 255 0

end

; Puzzle 12

display Century-and-a-Half Puzzle by John Conway, 1982

size 4 5
step 148

initial
azzb
czzd
ce d
fe g
hhii

target
hhii
f eg
c ed
czzd
azzb

equiv abfg
equiv cde
equiv hi

color z 255 0 0

end