1nb1kb1r/rp2n1pp/1q6/p1pp1p2/3PQP1P/N3P1PR/PPP5/1RB1KBN1 w k - 0 15
FEN state: 1nb1kb1r/rp2n1pp/1q6/p1pp1p2/3PQP1P/N3P1PR/PPP5/1RB1KBN1 w k - 0 15 ; Best move: d4c5
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at b7, black knight at e7, black pawn at g7 and black pawn at h7. Black queen at b6. Black pawn at a5, black pawn at c5, black pawn at d5 and black pawn at f5. White pawn at d4, white queen at e4, white pawn at f4 and white pawn at h4. White knight at a3, white pawn at e3, white pawn at g3 and white rook at h3. White pawn at a2, white pawn at b2 and white pawn at c2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 15. White to move.