rnbqk2r/2p2pbp/pp1p4/PN1Pp1p1/n1P1P3/1P4Q1/3K1PPP/R1B2BNR b - - 4 15
FEN state: rnbqk2r/2p2pbp/pp1p4/PN1Pp1p1/n1P1P3/1P4Q1/3K1PPP/R1B2BNR b - - 4 15 ; Best move: a4c5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at c7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at a6, black pawn at b6 and black pawn at d6. White pawn at a5, white knight at b5, white pawn at d5, black pawn at e5 and black pawn at g5. Black knight at a4, white pawn at c4 and white pawn at e4. White pawn at b3 and white queen at g3. White king at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 15. Black to move.