rnbk4/p1p2r1p/1p3p1n/2b1p1pQ/2PpPNP1/1PB1P3/P3BPRP/R3K3 b Q - 1 21
FEN state: rnbk4/p1p2r1p/1p3p1n/2b1p1pQ/2PpPNP1/1PB1P3/P3BPRP/R3K3 b Q - 1 21 ; Best move: d4c3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black king at d8. Black pawn at a7, black pawn at c7, black rook at f7 and black pawn at h7. Black pawn at b6, black pawn at f6 and black knight at h6. Black bishop at c5, black pawn at e5, black pawn at g5 and white queen at h5. White pawn at c4, black pawn at d4, white pawn at e4, white knight at f4 and white pawn at g4. White pawn at b3, white bishop at c3 and white pawn at e3. White pawn at a2, white bishop at e2, white pawn at f2, white rook at g2 and white pawn at h2. White rook at a1 and white king at e1. White queenside is the only castle move available. Half move number is 1. Full move number is 21. Black to move.