r4bnr/p1p2p2/1pn1k2p/1PBp4/3PN1bp/5P2/P1P1P1P1/R3KBNR w K - 3 18
FEN state: r4bnr/p1p2p2/1pn1k2p/1PBp4/3PN1bp/5P2/P1P1P1P1/R3KBNR w K - 3 18 ; Best move: c5f8
The current state of the chess board is: Black rook at a8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7 and black pawn at f7. Black pawn at b6, black knight at c6, black king at e6 and black pawn at h6. White pawn at b5, white bishop at c5 and black pawn at d5. White pawn at d4, white knight at e4, black bishop at g4 and black pawn at h4. White pawn at f3. White pawn at a2, white pawn at c2, white pawn at e2 and white pawn at g2. White rook at a1, 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 3. Full move number is 18. White to move.