rnbqkb2/2p5/p1np2r1/5Pp1/pPN5/2Pp4/Q2P1pNP/1RBK1R2 b q - 1 21
FEN state: rnbqkb2/2p5/p1np2r1/5Pp1/pPN5/2Pp4/Q2P1pNP/1RBK1R2 b q - 1 21 ; Best move: c8f5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at c7. Black pawn at a6, black knight at c6, black pawn at d6 and black rook at g6. White pawn at f5 and black pawn at g5. Black pawn at a4, white pawn at b4 and white knight at c4. White pawn at c3 and black pawn at d3. White queen at a2, white pawn at d2, black pawn at f2, white knight at g2 and white pawn at h2. White rook at b1, white bishop at c1, white king at d1 and white rook at f1. Black queenside is the only castle move available. Half move number is 1. Full move number is 21. Black to move.