rn1qkbr1/p2pp2p/bp3p1n/2p3p1/3PP3/N4N1P/PPPK1PPR/R1BQ1B2 b q - 0 9
FEN state: rn1qkbr1/p2pp2p/bp3p1n/2p3p1/3PP3/N4N1P/PPPK1PPR/R1BQ1B2 b q - 0 9 ; Best move: c5d4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at d7, black pawn at e7 and black pawn at h7. Black bishop at a6, black pawn at b6, black pawn at f6 and black knight at h6. Black pawn at c5 and black pawn at g5. White pawn at d4 and white pawn at e4. White knight at a3, white knight at f3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2, white king at d2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white bishop at c1, white queen at d1 and white bishop at f1. Black queenside is the only castle move available. Half move number is 0. Full move number is 9. Black to move.