1nbq3r/r2p4/1p1pPk2/1P5p/p3p1pn/PN4P1/R1P1KP1P/1N1Q1B1R b - - 2 23
FEN state: 1nbq3r/r2p4/1p1pPk2/1P5p/p3p1pn/PN4P1/R1P1KP1P/1N1Q1B1R b - - 2 23 ; Best move: a4b3
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8 and black rook at h8. Black rook at a7 and black pawn at d7. Black pawn at b6, black pawn at d6, white pawn at e6 and black king at f6. White pawn at b5 and black pawn at h5. Black pawn at a4, black pawn at e4, black pawn at g4 and black knight at h4. White pawn at a3, white knight at b3 and white pawn at g3. White rook at a2, white pawn at c2, white king at e2, white pawn at f2 and white pawn at h2. White knight at b1, white queen at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 23. Black to move.