1r1q1br1/pb1ppk2/n1p2n1p/1p3Pp1/3PP2P/1PP2P2/P2N4/R1BQKBNR b KQ - 0 12
FEN state: 1r1q1br1/pb1ppk2/n1p2n1p/1p3Pp1/3PP2P/1PP2P2/P2N4/R1BQKBNR b KQ - 0 12 ; Best move: g5g4
The current state of the chess board is: Black rook at b8, black queen at d8, black bishop at f8 and black rook at g8. Black pawn at a7, black bishop at b7, black pawn at d7, black pawn at e7 and black king at f7. Black knight at a6, black pawn at c6, black knight at f6 and black pawn at h6. Black pawn at b5, white pawn at f5 and black pawn at g5. White pawn at d4, white pawn at e4 and white pawn at h4. White pawn at b3, white pawn at c3 and white pawn at f3. White pawn at a2 and white knight at d2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 12. Black to move.