[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Mate in 11"]
[Black "Sideways caterpillar"]
[Result "*"]
[Annotator "peter"]
[SetUp "1"]
[FEN "8/k1B4K/3N4/pppppppp/8/8/1b6/5R2 w - - 0 1"]
[PlyCount "21"]
[SourceVersionDate "2020.04.01"]
{[#]} 1. Rb1 a4 (1... b4 2. Rxb2 a4 {transposes to the mainline}) (1... Ba3 2.
Rxb5 Bb4 3. Nc8+) (1... Bc3 2. Rxb5 a4 3. Rb6 a3 4. Nc8+ Ka8 5. Rb8#) (1... Bd4
2. Rxb5 Bc3 3. Nc8+) (1... f4 2. Rxb2 f3 3. Rxb5 a4 4. Ra5#) 2. Rxb2 b4 3. Rc2
c4 4. Rd2 d4 5. Re2 e4 6. Rf2 f4 7. Rg2 g4 8. Rh2 h4 9. Rxh4 Ka6 10. Rh5 Ka7
11. Ra5# *