r3k1n1/p1p2n1r/3pp1p1/1p3p1p/2bP2P1/2N2NRB/PBP1PP2/RQ1K4 w q - 6 18
FEN state: r3k1n1/p1p2n1r/3pp1p1/1p3p1p/2bP2P1/2N2NRB/PBP1PP2/RQ1K4 w q - 6 18 ; Best move: g4f5
The current state of the chess board is: Black rook at a8, black king at e8 and black knight at g8. Black pawn at a7, black pawn at c7, black knight at f7 and black rook at h7. Black pawn at d6, black pawn at e6 and black pawn at g6. Black pawn at b5, black pawn at f5 and black pawn at h5. Black bishop at c4, white pawn at d4 and white pawn at g4. White knight at c3, white knight at f3, white rook at g3 and white bishop at h3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at e2 and white pawn at f2. White rook at a1, white queen at b1 and white king at d1. Black queenside is the only castle move available. Half move number is 6. Full move number is 18. White to move.