Bonsoir André,
c'est vrai que le ternaire est efficace, mais on peut s'en passer ici.
_|__a_______b_________c__|__d_______e_________f___|___g______h______i
1|_3m57____8________56a7_|__9_____5a6A________2__|__34q7____1___34Q5r7x
2|_2j3M9ä__5a6A_______1__|__7_____4B5A6_____4b6B_|_238ê9___28Ê9___239
3|_2579____4______2g579ô_|__1_______8__________3_|_279_____259_____6
4|__6______2______45u79û_|_3n45U8Î_3N47w_____478î_|__1______4e9E___479
5|__8______3________4c7C_|_4d6D_____9_________1__|__5______2k46d___2K47c
6|_1H579ô_1h57â_____4579_|_45u6_____2______46v7y_|_46D7x9û___3______8
7|_1h5t7___1567Â______3__|_2______1i467____467w8Î_|_4689___45r689___459
8|__4______1i5s6______8__|_3f6F____1I36_________9_|_2l36______7____2L3p5S
9|_2g7G_____9_____2G6A7_|_3468î___3467z_______5__|_3o468___468______1
1) Interdit ôg (c3) GA (c9) aT (5 b2b78) th (a7) Hô (a6) => ô faux, c3, a6 ≠ 9
2) Interdit w (7 b7f7) âC (7 c5b6) cd (4 c5d5) Dv (6 d5f6) VF (6 d56d8) fn (3 d8d4) Nw (e4) => w faux, e4, f7 ≠7, e4=3N4n => Bn en dn
3) Interdit nd (4 e4d5) Dv VF fn => n faux, e4=3
4) OU : 3 de g8 ni F ni L [FD (6 d5d8) dk (h5) KL (2 i5i8)] supprimé => g8=2l6L => DL
5) Interdit LD (6 g8g6) dk KL => L faux, g8=2, 2j en h3 => jR
6) Interdit jR (h3) ra (5 e1i1) AG (c9) gj (2 a9a2) => j faux, a2, h3 ≠ 2 ;
RI 27 a9 (27)-c9-c3-a3 avec 2 jumeaux en rectangle => c3 ≠ 7
_|__a_______b_________c__|__d_______e_________f___|___g______h______i
1|_3m57______8______56a7s_|__9_____5a6A________2__|__34q7____1___34Q5r7x
2|_3M9m____5a6A_______1__|__7_____4B5A6_____4b6B_|_38ê9___2K8Ê9___2k39
3|_2G5r7N9M__4_______2g5G_|__1_______8__________3_|_7n9N____5R9r_____6
4|__6________2_____45u79û_|_45U8Î____3________478î_|__1______4e9E___479
5|__8________3_______4c7C_|_4d6D_____9_________1__|__5______2k46d__2K47c
6|_1H57____1h57â____4579Û_|_45u6_____2______46v7y_|_46D7x9û___3______8
7|_1h5t7___1567Â_______3__|_2_______1i467_____468Î_|_4689____45r689__459
8|__4______1i5F6w______8__|_3f6F_____1I6i________9__|__2________7____3F5f
9|_2g7G_____9______2G6A7_|_3F468î____467_______5__|_3f468____468______1
7) Interdit Ga (5c3b2) AG (c9) => g faux, c3=2, a9=2, c9=6A7a, 7A en e9, 7a en e7 => ai ; XY-wing c9(67) - c5 (47) - d5 (46) => D9 ≠ 6
8) Interdit ia (e7) Ai (6e1e8) => i faux, e8=1, b8=56=b2 => b6=b7=17
RI 17 b6-b7a7-a6 avec 1 jumeaux en rectangle => a6, a7 ≠ 7, => c1 ≠ 7, c1=56=b2 => a1, a3 ≠ 5, h3=5
_|__a_______b_________c__|__d_______e_________f___|___g______h______i
1|_3m7M____8_______5A6a_|__9_____5a6A________2__|__34q7____1_____34Q7x
2|_3M9m____5a6A______1__|__7_____4B5A6_____4b6B_|_38ê9___2K8Ê9___2k39
3|_7m9M____4_________2__|__1_______8__________3_|_7M9m_____5_____6
4|__6________2____45u79û_|_45U8Î____3_______47Y8î_|__1______4e9E___479
5|__8________3______4c7C_|_4d6D_____9_________1__|__5______2k46d__2K47c
6|_1a5A____1A7a___4579Û_|_45u6______2______46A7y_|_46D7x9û___3______8
7|_1A5a____1a7A______3__|_2_______467a_______468Î_|_4689____4689___45A9
8|__4______5A6a______8__|_3a6A______1_________9__|__2________7____3A5a
9|__2_______9______6A7a_|_3A48î____467A_______5__|_3a468____468______1
9) Fusion AD (6 d8d5) dc 4 c5d5) Ca (7 c5b6) => a=c=D => d6 ≠ 6, d6=4U5u ; h5, i5 ≠ 4 ; c4, c6 ≠ 7 ; d5=4A6a,
10) Interdit AU (4d5d6) uA (5c4c1) => A faux, c1=6, etc.
A+