2b1k1nr/r3bppp/pp5B/Pn1B4/5p1P/1P1P2PR/4P3/R2K2N1 b k - 0 21
FEN state: 2b1k1nr/r3bppp/pp5B/Pn1B4/5p1P/1P1P2PR/4P3/R2K2N1 b k - 0 21 ; Best move: g8h6
The current state of the chess board is: Black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black rook at a7, black bishop at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6 and white bishop at h6. White pawn at a5, black knight at b5 and white bishop at d5. Black pawn at f4 and white pawn at h4. White pawn at b3, white pawn at d3, white pawn at g3 and white rook at h3. White pawn at e2. White rook at a1, white king at d1 and white knight at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.