4k1nr/1r2ppb1/1qn1b1pp/ppPpP3/8/2P2NP1/PP3PKP/R1BQ1BNR w k - 2 16
FEN state: 4k1nr/1r2ppb1/1qn1b1pp/ppPpP3/8/2P2NP1/PP3PKP/R1BQ1BNR w k - 2 16 ; Best move: c5b6
The current state of the chess board is: Black king at e8, black knight at g8 and black rook at h8. Black rook at b7, black pawn at e7, black pawn at f7 and black bishop at g7. Black queen at b6, black knight at c6, black bishop at e6, black pawn at g6 and black pawn at h6. Black pawn at a5, black pawn at b5, white pawn at c5, black pawn at d5 and white pawn at e5. White pawn at c3, white knight at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at f2, white king at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 16. White to move.