rn2r3/p3pk1p/2pb3P/qB1n1p2/Np1Q4/7N/PP1P1PPR/RbB1K3 b Q - 1 21
FEN state: rn2r3/p3pk1p/2pb3P/qB1n1p2/Np1Q4/7N/PP1P1PPR/RbB1K3 b Q - 1 21 ; Best move: e7e5
The current state of the chess board is: Black rook at a8, black knight at b8 and black rook at e8. Black pawn at a7, black pawn at e7, black king at f7 and black pawn at h7. Black pawn at c6, black bishop at d6 and white pawn at h6. Black queen at a5, white bishop at b5, black knight at d5 and black pawn at f5. White knight at a4, black pawn at b4 and white queen at d4. White knight at h3. White pawn at a2, white pawn at b2, white pawn at d2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, black bishop at b1, white bishop at c1 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.