rn1k2nr/p2b4/P7/1Pp1ppbp/3pPBp1/3P1PP1/1P2KNP1/R3QBR1 b - - 1 23
FEN state: rn1k2nr/p2b4/P7/1Pp1ppbp/3pPBp1/3P1PP1/1P2KNP1/R3QBR1 b - - 1 23 ; Best move: e5f4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8, black knight at g8 and black rook at h8. Black pawn at a7 and black bishop at d7. White pawn at a6. White pawn at b5, black pawn at c5, black pawn at e5, black pawn at f5, black bishop at g5 and black pawn at h5. Black pawn at d4, white pawn at e4, white bishop at f4 and black pawn at g4. White pawn at d3, white pawn at f3 and white pawn at g3. White pawn at b2, white king at e2, white knight at f2 and white pawn at g2. White rook at a1, white queen at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 23. Black to move.