3rk2r/p1p1ppb1/1pb4p/1Q6/3B1pn1/3P2PP/PPP1P3/RN2KBNR w k - 4 18
FEN state: 3rk2r/p1p1ppb1/1pb4p/1Q6/3B1pn1/3P2PP/PPP1P3/RN2KBNR w k - 4 18 ; Best move: b5c6
The current state of the chess board is: Black rook at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7, black pawn at f7 and black bishop at g7. Black pawn at b6, black bishop at c6 and black pawn at h6. White queen at b5. White bishop at d4, black pawn at f4 and black knight at g4. White pawn at d3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2 and white pawn at e2. White rook at a1, white knight at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 4. Full move number is 18. White to move.