r2qkb1r/2pp1ppp/4p3/pBn2n2/P3bPP1/1P2P3/2PPK2P/RNBQ2NR w k - 1 13
FEN state: r2qkb1r/2pp1ppp/4p3/pBn2n2/P3bPP1/1P2P3/2PPK2P/RNBQ2NR w k - 1 13 ; Best move: g4f5
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at e6. Black pawn at a5, white bishop at b5, black knight at c5 and black knight at f5. White pawn at a4, black bishop at e4, white pawn at f4 and white pawn at g4. White pawn at b3 and white pawn at e3. White pawn at c2, white pawn at d2, white king at e2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 13. White to move.