1nb1k2r/r2p2pp/1ppq3n/p3p3/4KN1P/PP6/2P1PPP1/RNbQ1B1R w k - 1 15
FEN state: 1nb1k2r/r2p2pp/1ppq3n/p3p3/4KN1P/PP6/2P1PPP1/RNbQ1B1R w k - 1 15 ; Best move: d1d6
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black rook at a7, black pawn at d7, black pawn at g7 and black pawn at h7. Black pawn at b6, black pawn at c6, black queen at d6 and black knight at h6. Black pawn at a5 and black pawn at e5. White king at e4, white knight at f4 and white pawn at h4. White pawn at a3 and white pawn at b3. White pawn at c2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, black bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 15. White to move.