rnb1kb1r/p4pp1/P3p3/Bpp4p/6Pn/1P4R1/R2n4/1N2K3 w kq - 0 23
FEN state: rnb1kb1r/p4pp1/P3p3/Bpp4p/6Pn/1P4R1/R2n4/1N2K3 w kq - 0 23 ; Best move: b1d2
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at f7 and black pawn at g7. White pawn at a6 and black pawn at e6. White bishop at a5, black pawn at b5, black pawn at c5 and black pawn at h5. White pawn at g4 and black knight at h4. White pawn at b3 and white rook at g3. White rook at a2 and black knight at d2. White knight at b1 and white king at e1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 23. White to move.