1r1qk2r/p4p1p/2bpp1p1/1ppn4/2P2BPb/K2P1P1N/n2QP2P/RN3B1R w k - 0 18
FEN state: 1r1qk2r/p4p1p/2bpp1p1/1ppn4/2P2BPb/K2P1P1N/n2QP2P/RN3B1R w k - 0 18 ; Best move: c4d5
The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at f7 and black pawn at h7. Black bishop at c6, black pawn at d6, black pawn at e6 and black pawn at g6. Black pawn at b5, black pawn at c5 and black knight at d5. White pawn at c4, white bishop at f4, white pawn at g4 and black bishop at h4. White king at a3, white pawn at d3, white pawn at f3 and white knight at h3. Black knight at a2, white queen at d2, white pawn at e2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 18. White to move.