Shinkman, William Anthony
Dubuque Chess Journal, 1871
#2
7 + 5
15 | British Chess Magazine | 1910 |
3360 | Simple Two-move Themes | 1924 |
5454 | Near Snap | 2009 |
This anticipates 230671(1879), 102776(1909), 140872(1953), 163022(2014)
There are these versions: 4500
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