r1b1kb1r/1ppp1ppp/p6q/3p4/P4Nn1/N7/nPPBPP1P/1R1QKBR1 w kq - 0 13
FEN state: r1b1kb1r/1ppp1ppp/p6q/3p4/P4Nn1/N7/nPPBPP1P/1R1QKBR1 w kq - 0 13 ; Best move: g1g4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6 and black queen at h6. Black pawn at d5. White pawn at a4, white knight at f4 and black knight at g4. White knight at a3. Black knight at a2, white pawn at b2, white pawn at c2, white bishop at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.