1k1r1bnr/p2q1p2/n1pp2pp/1p3bP1/PPP1p3/4RN2/3PPPBP/1NBQK2R b K - 2 18
FEN state: 1k1r1bnr/p2q1p2/n1pp2pp/1p3bP1/PPP1p3/4RN2/3PPPBP/1NBQK2R b K - 2 18 ; Best move: e4f3
The current state of the chess board is: Black king at b8, black rook at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black queen at d7 and black pawn at f7. Black knight at a6, black pawn at c6, black pawn at d6, black pawn at g6 and black pawn at h6. Black pawn at b5, black bishop at f5 and white pawn at g5. White pawn at a4, white pawn at b4, white pawn at c4 and black pawn at e4. White rook at e3 and white knight at f3. White pawn at d2, white pawn at e2, white pawn at f2, white bishop at g2 and white pawn at h2. White knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 2. Full move number is 18. Black to move.