4k2r/prpqbp1p/b2p1np1/1p2p2P/1n4P1/1QP1PP2/PP1PB2R/RNBK2N1 w k - 4 16
FEN state: 4k2r/prpqbp1p/b2p1np1/1p2p2P/1n4P1/1QP1PP2/PP1PB2R/RNBK2N1 w k - 4 16 ; Best move: c3b4
The current state of the chess board is: Black king at e8 and black rook at h8. Black pawn at a7, black rook at b7, black pawn at c7, black queen at d7, black bishop at e7, black pawn at f7 and black pawn at h7. Black bishop at a6, black pawn at d6, black knight at f6 and black pawn at g6. Black pawn at b5, black pawn at e5 and white pawn at h5. Black knight at b4 and white pawn at g4. White queen at b3, white pawn at c3, white pawn at e3 and white pawn at f3. White pawn at a2, white pawn at b2, white pawn at d2, white bishop at e2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white king at d1 and white knight at g1. Black kingside is the only castle move available. Half move number is 4. Full move number is 16. White to move.