1rbk1bn1/qp1ppr2/2n3p1/p1pN1pP1/1RP5/3P4/P3PPPR/3QKBN1 b - - 0 17
FEN state: 1rbk1bn1/qp1ppr2/2n3p1/p1pN1pP1/1RP5/3P4/P3PPPR/3QKBN1 b - - 0 17 ; Best move: a5b4
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at d8, black bishop at f8 and black knight at g8. Black queen at a7, black pawn at b7, black pawn at d7, black pawn at e7 and black rook at f7. Black knight at c6 and black pawn at g6. Black pawn at a5, black pawn at c5, white knight at d5, black pawn at f5 and white pawn at g5. White rook at b4 and white pawn at c4. White pawn at d3. White pawn at a2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White queen at d1, white king at e1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 17. Black to move.