21. Red Develops the Right Horse (4)

"21. Red Develops the Right Horse (4)" is a opening record from Same-direction Cannons, 19 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.	P3+1	H2+1
6.	H3+4	R4+4
7.	H4+5 ×Soldier	H7+5 ×Horse
8.	C5+4+ ×Horse	A4+5
9.	E7+5	C2=3
10.	R2+5	R1=2
11.	C8+4	P3+1
12.	C8=3 ×Soldier	R2+7
13.	R2=7 ×Soldier	C3-1
14.	A6+5	R2=3 ×Horse
15.	R9=6	R4-5
16.	R7=6	R4+4 ×Chariot
17.	R6+5 ×Chariot	C3=2
18.	K5=6	C2-1
19.	R6=7

Final position

10 moves

19 moves

Variations and alternative defences

The source manual records 12 variations. Each branch starts from the move number shown.

Variation 1, from move 12: C3+1 13. C3=7 H1+3 14. R2=7 H3-4 15. R9=8 Try it on the board
Variation 2, from move 11: 11. R9=8 R2+6 12. P7+1 R4+3 13. A6+5 P9+1 14. C5=4 Try it on the board
Variation 3, from move 10: 10. R9=8 R1=2 11. C8+6 R4-1 12. R2+1 P1+1 13. R2=8 Try it on the board
Variation 4, from move 12: 12. R8+7 K5=4 13. R8=7 A5+4 Try it on the board
Variation 5, from move 10: 10. C8+4 R1=2 11. R9=8 P9+1 12. R2+5 Try it on the board
Variation 6, from move 9: C2=4 10. R9=8 R1=2 11. C8+6 R4+2 12. R8+2 K5=4 13. A4+5 C5+4 14. K5=4 R4-1 15. R2+3 C5=7 16. P7+1 H1-3 17. H7+6 R4-1 18. R2=3 C4=6 Try it on the board
Variation 7, from move 17: H3+4 18. C8=6 C4=2 19. H6+7 Try it on the board
Variation 8, from move 14: 14. R2+3 C5=1 15. A5+6 C1=8 16. P7+1 C8+3+ 17. E3+1 C8-8 18. C8-2 H1-3 Try it on the board
Variation 9, from move 13: 13. C5=4 C4+7 14. A4+5 R4=5 15. C4=5 C4-2 Try it on the board
Variation 10, from move 12: C4+7 13. R2+9 E7+9 14. A4+5 R4-4 15. C5+2 Try it on the board
Variation 11, from move 9: 9. A6+5 C2=3 10. R9=8 R1=2 11. C8+5 R4-2 12. C5-2 K5=4 13. C8=5 R2+9 14. H7-8 E3+5 15. R2+2 C3+4 16. R2=6 Try it on the board
Variation 12, from move 7: R4+1 8. R2+6 R4=3 9. H5-6 Try it on the board

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