rn1k3r/1p1b4/pn1p2pb/5pPp/1P1p4/B1P3PN/P2QP2P/RN2K1RB w Q - 2 18
FEN state: rn1k3r/1p1b4/pn1p2pb/5pPp/1P1p4/B1P3PN/P2QP2P/RN2K1RB w Q - 2 18 ; Best move: d2d4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8 and black rook at h8. Black pawn at b7 and black bishop at d7. Black pawn at a6, black knight at b6, black pawn at d6, black pawn at g6 and black bishop at h6. Black pawn at f5, white pawn at g5 and black pawn at h5. White pawn at b4 and black pawn at d4. White bishop at a3, white pawn at c3, white pawn at g3 and white knight at h3. White pawn at a2, white queen at d2, white pawn at e2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white rook at g1 and white bishop at h1. White queenside is the only castle move available. Half move number is 2. Full move number is 18. White to move.