r1k2b1r/pppqp1pp/n6n/1P2P1N1/P1Pp1BbP/3P4/R2Q1P2/1N2KB1R w K - 0 18
FEN state: r1k2b1r/pppqp1pp/n6n/1P2P1N1/P1Pp1BbP/3P4/R2Q1P2/1N2KB1R w K - 0 18 ; Best move: e5e6
The current state of the chess board is: Black rook at a8, black king at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black queen at d7, black pawn at e7, black pawn at g7 and black pawn at h7. Black knight at a6 and black knight at h6. White pawn at b5, white pawn at e5 and white knight at g5. White pawn at a4, white pawn at c4, black pawn at d4, white bishop at f4, black bishop at g4 and white pawn at h4. White pawn at d3. White rook at a2, white queen at d2 and white pawn at f2. White knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 18. White to move.