2b1k1nr/3nq2P/2p5/rp1pb3/p3Pp1P/PP1B1N2/1RPPN3/2BQ1K1R b k - 5 21
FEN state: 2b1k1nr/3nq2P/2p5/rp1pb3/p3Pp1P/PP1B1N2/1RPPN3/2BQ1K1R b k - 5 21 ; Best move: e7h7
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 knight at d7, black queen at e7 and white pawn at h7. Black pawn at c6. Black rook at a5, black pawn at b5, black pawn at d5 and black bishop at e5. Black pawn at a4, white pawn at e4, black pawn at f4 and white pawn at h4. White pawn at a3, white pawn at b3, white bishop at d3 and white knight at f3. White rook at b2, white pawn at c2, white pawn at d2 and white knight at e2. White bishop at c1, white queen at d1, white king at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 5. Full move number is 21. Black to move.