rn1q1br1/2pkn2p/pp1B4/6p1/P4p2/RPN2bP1/2PPPN1P/1Q2KB1R b K - 1 18
FEN state: rn1q1br1/2pkn2p/pp1B4/6p1/P4p2/RPN2bP1/2PPPN1P/1Q2KB1R b K - 1 18 ; Best move: f3h1
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black rook at g8. Black pawn at c7, black king at d7, black knight at e7 and black pawn at h7. Black pawn at a6, black pawn at b6 and white bishop at d6. Black pawn at g5. White pawn at a4 and black pawn at f4. White rook at a3, white pawn at b3, white knight at c3, black bishop at f3 and white pawn at g3. White pawn at c2, white pawn at d2, white pawn at e2, white knight at f2 and white pawn at h2. White queen at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 18. Black to move.