1rb2kr1/1pp4p/6pb/3ppp2/1n2P2P/P5nN/NPP5/R2QK1BB w - - 6 23
FEN state: 1rb2kr1/1pp4p/6pb/3ppp2/1n2P2P/P5nN/NPP5/R2QK1BB w - - 6 23 ; Best move: a2b4
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at f8 and black rook at g8. Black pawn at b7, black pawn at c7 and black pawn at h7. Black pawn at g6 and black bishop at h6. Black pawn at d5, black pawn at e5 and black pawn at f5. Black knight at b4, white pawn at e4 and white pawn at h4. White pawn at a3, black knight at g3 and white knight at h3. White knight at a2, white pawn at b2 and white pawn at c2. White rook at a1, white queen at d1, white king at e1, white bishop at g1 and white bishop at h1. Both players have exhausted their castles. Half move number is 6. Full move number is 23. White to move.