r3k1r1/pp2p1bp/q1n1b1p1/2pp1P1P/5P2/NP1P4/P1PKPn1R/R1BQ2NB w q - 6 18
FEN state: r3k1r1/pp2p1bp/q1n1b1p1/2pp1P1P/5P2/NP1P4/P1PKPn1R/R1BQ2NB w q - 6 18 ; Best move: h2f2
The current state of the chess board is: Black rook at a8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at b7, black pawn at e7, black bishop at g7 and black pawn at h7. Black queen at a6, black knight at c6, black bishop at e6 and black pawn at g6. Black pawn at c5, black pawn at d5, white pawn at f5 and white pawn at h5. White pawn at f4. White knight at a3, white pawn at b3 and white pawn at d3. White pawn at a2, white pawn at c2, white king at d2, white pawn at e2, black knight at f2 and white rook at h2. White rook at a1, white bishop at c1, white queen at d1, white knight at g1 and white bishop at h1. Black queenside is the only castle move available. Half move number is 6. Full move number is 18. White to move.