1nbbk3/1ppp1p1r/5n1p/p2rp1P1/2K2P2/1P1PP3/2P3PR/qNQ2BN1 b - - 0 18
FEN state: 1nbbk3/1ppp1p1r/5n1p/p2rp1P1/2K2P2/1P1PP3/2P3PR/qNQ2BN1 b - - 0 18 ; Best move: b7b5
The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at d8 and black king at e8. Black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black rook at h7. Black knight at f6 and black pawn at h6. Black pawn at a5, black rook at d5, black pawn at e5 and white pawn at g5. White king at c4 and white pawn at f4. White pawn at b3, white pawn at d3 and white pawn at e3. White pawn at c2, white pawn at g2 and white rook at h2. Black queen at a1, white knight at b1, white queen at c1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.