rn1q1br1/1b1pnk1p/ppp3p1/4pp2/1PPP1P2/P3PKPB/2R4P/1NBQ2NR b - - 0 15
FEN state: rn1q1br1/1b1pnk1p/ppp3p1/4pp2/1PPP1P2/P3PKPB/2R4P/1NBQ2NR b - - 0 15 ; Best move: e5e4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black rook at g8. Black bishop at b7, black pawn at d7, black knight at e7, black king at f7 and black pawn at h7. Black pawn at a6, black pawn at b6, black pawn at c6 and black pawn at g6. Black pawn at e5 and black pawn at f5. White pawn at b4, white pawn at c4, white pawn at d4 and white pawn at f4. White pawn at a3, white pawn at e3, white king at f3, white pawn at g3 and white bishop at h3. White rook at c2 and white pawn at h2. White knight at b1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. Black to move.