1nbqkbr1/r1p1p2p/1p3p2/p2p4/PP1P1pn1/5NP1/2P1P1BP/RNBQK1R1 b - - 0 13
FEN state: 1nbqkbr1/r1p1p2p/1p3p2/p2p4/PP1P1pn1/5NP1/2P1P1BP/RNBQK1R1 b - - 0 13 ; Best move: e7e5
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black rook at a7, black pawn at c7, black pawn at e7 and black pawn at h7. Black pawn at b6 and black pawn at f6. Black pawn at a5 and black pawn at d5. White pawn at a4, white pawn at b4, white pawn at d4, black pawn at f4 and black knight at g4. White knight at f3 and white pawn at g3. White pawn at c2, white pawn at e2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 13. Black to move.