rnk3nr/5pb1/p1p5/Pp2Pbpp/1PBPP3/6PP/RQP5/2B1K1NR b K - 0 23
FEN state: rnk3nr/5pb1/p1p5/Pp2Pbpp/1PBPP3/6PP/RQP5/2B1K1NR b K - 0 23 ; Best move: f5e4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at c8, black knight at g8 and black rook at h8. Black pawn at f7 and black bishop at g7. Black pawn at a6 and black pawn at c6. White pawn at a5, black pawn at b5, white pawn at e5, black bishop at f5, black pawn at g5 and black pawn at h5. White pawn at b4, white bishop at c4, white pawn at d4 and white pawn at e4. White pawn at g3 and white pawn at h3. White rook at a2, white queen at b2 and white pawn at c2. White bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 23. Black to move.