3qkb1r/rp2p2p/p3b2p/2pp1p2/PP1P1N1P/2P1QP2/n3P3/RN2KB1R b k - 2 21
FEN state: 3qkb1r/rp2p2p/p3b2p/2pp1p2/PP1P1N1P/2P1QP2/n3P3/RN2KB1R b k - 2 21 ; Best move: e6f7
The current state of the chess board is: Black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at b7, black pawn at e7 and black pawn at h7. Black pawn at a6, black bishop at e6 and black pawn at h6. Black pawn at c5, black pawn at d5 and black pawn at f5. White pawn at a4, white pawn at b4, white pawn at d4, white knight at f4 and white pawn at h4. White pawn at c3, white queen at e3 and white pawn at f3. Black knight at a2 and white pawn at e2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 21. Black to move.