r1b2rn1/p4qbp/2n3k1/1NppP1p1/1PPP2P1/4PQ2/P2B4/2R1KBNR b K - 2 23
FEN state: r1b2rn1/p4qbp/2n3k1/1NppP1p1/1PPP2P1/4PQ2/P2B4/2R1KBNR b K - 2 23 ; Best move: f7f3
The current state of the chess board is: Black rook at a8, black bishop at c8, black rook at f8 and black knight at g8. Black pawn at a7, black queen at f7, black bishop at g7 and black pawn at h7. Black knight at c6 and black king at g6. White knight at b5, black pawn at c5, black pawn at d5, white pawn at e5 and black pawn at g5. White pawn at b4, white pawn at c4, white pawn at d4 and white pawn at g4. White pawn at e3 and white queen at f3. White pawn at a2 and white bishop at d2. White rook at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 2. Full move number is 23. Black to move.