r2qk1nr/pp2pp1p/P1P4b/8/5Pp1/N3Q3/b1P1n1PP/R1B1KBNR w KQkq - 0 13
FEN state: r2qk1nr/pp2pp1p/P1P4b/8/5Pp1/N3Q3/b1P1n1PP/R1B1KBNR w KQkq - 0 13 ; Best move: a6b7
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7, black pawn at f7 and black pawn at h7. White pawn at a6, white pawn at c6 and black bishop at h6. White pawn at f4 and black pawn at g4. White knight at a3 and white queen at e3. Black bishop at a2, white pawn at c2, black knight at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.