71. Black Develops the Edge Horse

"71. Black Develops the Edge Horse" is a opening record from Same-direction Cannons, 21 moves long. The move list below marks every check and capture, and the variations from the source book are listed after it.

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Pieces on the board

Red has a General, 2 Advisors, 2 Elephants, 2 Chariots, 2 Horses, 2 Cannons, 5 Soldiers. Black has a General, 2 Advisors, 2 Elephants, 2 Chariots, 2 Horses, 2 Cannons, 5 Soldiers.

Move list

1.	C2=5	C8=5
2.	H2+3	H8+7
3.	R1=2	R9+1
4.	H8+7	R9=4
5.	A6+5	H2+1
6.	P3+1	C2=3
7.	R9=8	R1=2
8.	C8+4	R4+4
9.	C8=5+ ×Soldier	A4+5
10.	R8+9 ×Chariot	H1-2 ×Chariot
11.	+C-2	R4+1
12.	R2+5	R4=3 ×Soldier
13.	R2=8	H2+1
14.	R8+2	C3-1
15.	H7-9	R3+2
16.	R8=6	R3=1 ×Horse
17.	K5=6	H7+5
18.	R6+1	C5+3 ×Cannon
19.	C5+2 ×Cannon	E7+5
20.	H3+4	R1-2 ×Soldier
21.	H4+5 ×Horse

Final position

10 moves

20 moves

21 moves

Variations and alternative defences

The source manual records 5 variations. Each branch starts from the move number shown.

Variation 1, from move 12: C3+4 13. R2+2 C3+3 14. R2=3 R4=3 15. R3-1 Try it on the board
Variation 2, from move 11: 11. +C=9 R4=7 12. H3+2 P3+1 13. H2+1 P3+1 14. C5+5+ E3+5 15. E7+5 R7=4 Try it on the board
Variation 3, from move 8: A4+5 9. H3+4 R4+4 10. H4+5 H7+5 11. C8=5 R2+9 12. H7-8 R4+1 13. +C=1 R4=3 14. C5+5+ E3+5 15. E3+5 R3=5 Try it on the board
Variation 4, from move 7: R4+5 8. H3+4 R4=3 9. H4+6 R3+1 10. H6+7 H1-3 11. H7-5 H7+5 12. C5+4+ C5+4+ 13. E7+5 R1=2 14. R2+7 K5+1 15. R2+1+ K5+1 16. R2=7 R3=2 17. R8=6 +R+2 18. R7-1+ K5-1 19. R7-1 Try it on the board
Variation 5, from move 10: C5+4 11. R2+3 C5-2 12. C8+4 Try it on the board

← Previous puzzle: 70. Black Develops the Standard Horse (2)Next puzzle: 72. Black Advances the 7th-File Soldier →

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