[Event "?"]
[Site "lichess.org"]
[Date "2021.07.28"]
[Round "?"]
[White "Enough checking distance"]
[Black "?"]
[Result "*"]
[Annotator "peter"]
[SetUp "1"]
[FEN "1R6/4K1k1/4P3/8/8/8/r7/8 b - - 0 0"]
[PlyCount "7"]
[EventDate "2021.??.??"]
[SourceVersionDate "2021.06.11"]
{[#]} 1... Ra7+ 2. Kd6 Ra6+ 3. Kd7 Ra7+ 4. Kc6 (4. Ke8 Kf6 5. Rb6 Re7+ $11) (4.
Kd8 Kf6 5. Rb6 Re7 $11) (4. Kd6 Ra6+ 5. Ke5 Ra5+ 6. Kd4 Kf6 7. Re8 Ra4+ (7...
Re5 $2 {a little care is needed} 8. Rf8+ Ke7 (8... Kxe6 9. Re8+) 9. Kxe5 Kxf8
10. Kd6 Ke8 11. e7 Kf7 12. Kd7 $18) 8. Kd5 Ra5+ 9. Kc6 Ra6+ 10. Kd7 Ra7+ {etc})
4... Ra6+ $11 {etc} *