1n4r1/r3kp1p/bp1p3b/p2qp1p1/PpPP2n1/4PPP1/8/1RBQKBNR w K - 1 18
FEN state: 1n4r1/r3kp1p/bp1p3b/p2qp1p1/PpPP2n1/4PPP1/8/1RBQKBNR w K - 1 18 ; Best move: c4d5
The current state of the chess board is: Black knight at b8 and black rook at g8. Black rook at a7, black king at e7, black pawn at f7 and black pawn at h7. Black bishop at a6, black pawn at b6, black pawn at d6 and black bishop at h6. Black pawn at a5, black queen at d5, black pawn at e5 and black pawn at g5. White pawn at a4, black pawn at b4, white pawn at c4, white pawn at d4 and black knight at g4. White pawn at e3, white pawn at f3 and white pawn at g3. White rook at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 18. White to move.