r1b4r/1pqpkpbp/2n1p1p1/8/1pp1NBPP/3PK2R/PQP1P3/R3NB2 b - - 1 18
FEN state: r1b4r/1pqpkpbp/2n1p1p1/8/1pp1NBPP/3PK2R/PQP1P3/R3NB2 b - - 1 18 ; Best move: c7b6
The current state of the chess board is: Black rook at a8, black bishop at c8 and black rook at h8. Black pawn at b7, black queen at c7, black pawn at d7, black king at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black knight at c6, black pawn at e6 and black pawn at g6. Black pawn at b4, black pawn at c4, white knight at e4, white bishop at f4, white pawn at g4 and white pawn at h4. White pawn at d3, white king at e3 and white rook at h3. White pawn at a2, white queen at b2, white pawn at c2 and white pawn at e2. White rook at a1, white knight at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 1. Full move number is 18. Black to move.