1r2k1nr/pb1R2bp/n3p3/2p3p1/3P2P1/P6N/RPP1N2P/3Q1K1B b k - 2 21
FEN state: 1r2k1nr/pb1R2bp/n3p3/2p3p1/3P2P1/P6N/RPP1N2P/3Q1K1B b k - 2 21 ; Best move: e8d7
The current state of the chess board is: Black rook at b8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, white rook at d7, black bishop at g7 and black pawn at h7. Black knight at a6 and black pawn at e6. Black pawn at c5 and black pawn at g5. White pawn at d4 and white pawn at g4. White pawn at a3 and white knight at h3. White rook at a2, white pawn at b2, white pawn at c2, white knight at e2 and white pawn at h2. White queen at d1, white king at f1 and white bishop at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 21. Black to move.