| White to play 53: Bar/20* 13/10 is S, H or D (or B) | |
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From the tutorial, the definition of H is to hit and bring a checker down, hence 53H is completely unambigious here, with no need for assumption?
That is correct. Actually, though, I slightly prefer S to H, because the reader needn't even know the hit/down convention. That said, any of S, H or D (or B, which is a cousin of S though less common) should be clear enough for this case. Positions with a checker on the roof tend to grant more Nactation options.
Note that in my original post, I left H as is in your header (though I made the slight change to S in my diagram). However, when I saw your H/D discussion with Stick, I put S in the headers of my rollout posts, just so that all three letters would be represented in the thread. :)
Nack