rnb1q2r/p1pppkbp/1p3p2/P7/1N3Np1/R5n1/1PPPPP1P/2BQKBR1 w - - 4 13
FEN state: rnb1q2r/p1pppkbp/1p3p2/P7/1N3Np1/R5n1/1PPPPP1P/2BQKBR1 w - - 4 13 ; Best move: a3g3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at e7, black king at f7, black bishop at g7 and black pawn at h7. Black pawn at b6 and black pawn at f6. White pawn at a5. White knight at b4, white knight at f4 and black pawn at g4. White rook at a3 and black knight at g3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 13. White to move.