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author | dakkar <dakkar@thenautilus.net> | 2016-07-31 16:38:20 +0100 |
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committer | dakkar <dakkar@thenautilus.net> | 2016-07-31 16:38:20 +0100 |
commit | 3a319b3920fb724257a0f21f43acf16f3595c72e (patch) | |
tree | 70333a0989fc52f89ee2ffa9ea24116b3c979ada /dobble.txt | |
download | dobble-3a319b3920fb724257a0f21f43acf16f3595c72e.tar.gz dobble-3a319b3920fb724257a0f21f43acf16f3595c72e.tar.bz2 dobble-3a319b3920fb724257a0f21f43acf16f3595c72e.zip |
builder for a Dobble-like deck
Diffstat (limited to 'dobble.txt')
-rw-r--r-- | dobble.txt | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/dobble.txt b/dobble.txt new file mode 100644 index 0000000..aa182fc --- /dev/null +++ b/dobble.txt @@ -0,0 +1,68 @@ +Dobble http://images.math.cnrs.fr/Dobble-et-la-geometrie-finie.html + +projective finite plane based on ℤ₇ + +one point per card, one line per symbol, two points per line, 7+1 +lines per point + +cards: 7² (point pairs) + 7 (parallel lines) + 1 (extra parallel, the +"vertical" one) (???) + +------- + +let's try ℤ₃p + +(0,0) (1,0) (2,0) | (i,0) +(0,1) (1,1) (2,1) | (i,1) +(0,2) (1,2) (2,2) | (i,2) +------------------+ +(0,i) + +[a] x=0 (0,0) (0,1) (0,2) (0,i) +[b] x=1 (1,0) (1,1) (1,2) (0,i) +[c] x=2 (2,0) (2,1) (2,2) (0,i) +[d] y=0 (0,0) (1,0) (2,0) (i,0) +[e] y=1 (0,1) (1,1) (2,1) (i,0) +[f] y=2 (0,2) (1,2) (2,2) (i,0) +[g] x+y=0 (0,0) (1,2) (2,1) (i,1) +[h] x+y=1 (0,1) (1,0) (2,2) (i,1) +[i] x+y=2 (0,2) (1,1) (2,0) (i,1) +[j] x+2y=0 (0,0) (1,1) (2,2) (i,2) +[k] x+2y=1 (0,2) (1,0) (2,1) (i,2) +[l] x+2y=2 (0,1) (1,2) (2,0) (i,2) +[m] x+y=i (i,0) (i,1) (i,2) (0,i) + +13 lines=symbols, 13 point=cards + +card symbols +----- ------- +(0,0) a d g j +(0,1) a e h l +(0,2) a f i k +(0,i) abc m +(1,0) b d h k +(1,1) b e ij +(1,2) b fg l +(2,0) cd i l +(2,1) c e g k +(2,2) c f h j +(i,0) def m +(i,1) ghi m +(i,2) jklm + + +in "my" order: + +(i,2) jklm +(i,1) hgi m +(i,0) efd m +(0,i) abc m +(2,0) c d i l +(1,2) b f g l +(0,1) a e h l +(2,1) ce g k +(1,0) b dh k +(0,2) a f i k +(2,2) c f h j +(1,1) b e ij +(0,0) a d g j |