r1q1kb2/1b2pp1r/2pp4/pp4pp/P1P1n1PN/7P/1P1PPP2/R1B1QK1R w q - 0 18
FEN state: r1q1kb2/1b2pp1r/2pp4/pp4pp/P1P1n1PN/7P/1P1PPP2/R1B1QK1R w q - 0 18 ; Best move: d2d3
The current state of the chess board is: Black rook at a8, black queen at c8, black king at e8 and black bishop at f8. Black bishop at b7, black pawn at e7, black pawn at f7 and black rook at h7. Black pawn at c6 and black pawn at d6. Black pawn at a5, black pawn at b5, black pawn at g5 and black pawn at h5. White pawn at a4, white pawn at c4, black knight at e4, white pawn at g4 and white knight at h4. White pawn at h3. White pawn at b2, white pawn at d2, white pawn at e2 and white pawn at f2. White rook at a1, white bishop at c1, white queen at e1, white king at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 18. White to move.