rq4nr/p1pb3p/1pn1Pk1b/3p2p1/1P2P3/B7/P1PP1P1P/RN1QKBNR w - - 3 13
FEN state: rq4nr/p1pb3p/1pn1Pk1b/3p2p1/1P2P3/B7/P1PP1P1P/RN1QKBNR w - - 3 13 ; Best move: d1f3
The current state of the chess board is: Black rook at a8, black queen at b8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black bishop at d7 and black pawn at h7. Black pawn at b6, black knight at c6, white pawn at e6, black king at f6 and black bishop at h6. Black pawn at d5 and black pawn at g5. White pawn at b4 and white pawn at e4. White bishop at a3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 13. White to move.