No. 21: Red Retreats the Seventh-File Cannon vs Black Advances Cannon to Hit the Horse (3)

"No. 21: Red Retreats the Seventh-File Cannon vs Black Advances Cannon to Hit the Horse (3)" is a opening record from 57 Cannons vs Screen Horses, 24 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	H8+7
2.	H2+3	R9=8
3.	R1=2	H2+3
4.	P3+1	P3+1
5.	H8+9	P1+1
6.	C8=7	H3+2
7.	R9+1	P1+1
8.	P9+1 ×Soldier	R1+5 ×Soldier
9.	R2+4	E7+5
10.	R9=4	A6+5
11.	R4+5	H2+1
12.	C7-1	C2+5
13.	R4-2	P3+1
14.	C5-1	P3=4
15.	R2+2	C2-2
16.	R4=6 ×Soldier	C2=7 ×Soldier
17.	C5+5 ×Soldier	C7+4+ ×Elephant
18.	A4+5	R1-5
19.	R6=9	R1=2
20.	R9=8	R2=1
21.	C5-1	H1+3
22.	R8-2	C8=9
23.	R2+3+ ×Chariot	H7-8 ×Chariot
24.	R8=7 ×Horse

Final position

10 moves

20 moves

24 moves

Variations and alternative defences

The source manual records 2 variations. Each branch starts from the move number shown.

Variation 1, from move 15: C2-4 16. R2-1 H1+3 17. R4-2 C2=3 18. R4=7 P7+1 19. R2-1 C3+4 20. C7=9 R1+2 21. E7+9 C8=9 22. P3+1 R8+5 23. H3+2 E5+7 Try it on the board
Variation 2, from move 15: 15. C5=3 C8+2 16. A4+5 R1=2 17. R4+1 C2=3 18. C7=9 R2-1 19. R4=8 H1-2 20. H3+4 C8=3 21. R2+5+ H7-8 22. H4+5 -C-3 Try it on the board

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