1nb1kb1r/rp1p1pp1/p1p1p3/5nBp/2PP1q1P/P4P2/1P1KP1PR/RN1Q1B2 w k - 0 12
FEN state: 1nb1kb1r/rp1p1pp1/p1p1p3/5nBp/2PP1q1P/P4P2/1P1KP1PR/RN1Q1B2 w k - 0 12 ; Best move: g5f4
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at b7, black pawn at d7, black pawn at f7 and black pawn at g7. Black pawn at a6, black pawn at c6 and black pawn at e6. Black knight at f5, white bishop at g5 and black pawn at h5. White pawn at c4, white pawn at d4, black queen at f4 and white pawn at h4. White pawn at a3 and white pawn at f3. White pawn at b2, white king at d2, white pawn at e2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white queen at d1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 0. Full move number is 12. White to move.