rn2k3/4prbp/1p2Pn2/p1pq1ppP/8/PP3P1R/R1bP2P1/BQ2K1N1 w q - 0 21
FEN state: rn2k3/4prbp/1p2Pn2/p1pq1ppP/8/PP3P1R/R1bP2P1/BQ2K1N1 w q - 0 21 ; Best move: e6f7
The current state of the chess board is: Black rook at a8, black knight at b8 and black king at e8. Black pawn at e7, black rook at f7, black bishop at g7 and black pawn at h7. Black pawn at b6, white pawn at e6 and black knight at f6. Black pawn at a5, black pawn at c5, black queen at d5, black pawn at f5, black pawn at g5 and white pawn at h5. White pawn at a3, white pawn at b3, white pawn at f3 and white rook at h3. White rook at a2, black bishop at c2, white pawn at d2 and white pawn at g2. White bishop at a1, white queen at b1, white king at e1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 21. White to move.