rn3br1/pb3ppp/3pkP1n/qp1Np3/2p1P2P/1P1P3N/2P1K1P1/R1BQ1BR1 b - - 2 15
FEN state: rn3br1/pb3ppp/3pkP1n/qp1Np3/2p1P2P/1P1P3N/2P1K1P1/R1BQ1BR1 b - - 2 15 ; Best move: a5a1
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8 and black rook at g8. Black pawn at a7, black bishop at b7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at d6, black king at e6, white pawn at f6 and black knight at h6. Black queen at a5, black pawn at b5, white knight at d5 and black pawn at e5. Black pawn at c4, white pawn at e4 and white pawn at h4. White pawn at b3, white pawn at d3 and white knight at h3. White pawn at c2, white king at e2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 15. Black to move.