r1b1qb1r/1p1kp1pp/p1pn4/1N1p4/3NPpP1/1P1P4/P2B1P1P/2RQKBR1 b - - 3 15
FEN state: r1b1qb1r/1p1kp1pp/p1pn4/1N1p4/3NPpP1/1P1P4/P2B1P1P/2RQKBR1 b - - 3 15 ; Best move: d6b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black king at d7, black pawn at e7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at c6 and black knight at d6. White knight at b5 and black pawn at d5. White knight at d4, white pawn at e4, black pawn at f4 and white pawn at g4. White pawn at b3 and white pawn at d3. White pawn at a2, white bishop at d2, white pawn at f2 and white pawn at h2. White rook at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 15. Black to move.