1rbqk1nr/6bp/p4p2/p1p1p1pP/n1PpP1PR/RP6/1Q1PNP2/2B1KB2 w - - 13 25
FEN state: 1rbqk1nr/6bp/p4p2/p1p1p1pP/n1PpP1PR/RP6/1Q1PNP2/2B1KB2 w - - 13 25 ; Best move: a3a4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black bishop at g7 and black pawn at h7. Black pawn at a6 and black pawn at f6. Black pawn at a5, black pawn at c5, black pawn at e5, black pawn at g5 and white pawn at h5. Black knight at a4, white pawn at c4, black pawn at d4, white pawn at e4, white pawn at g4 and white rook at h4. White rook at a3 and white pawn at b3. White queen at b2, white pawn at d2, white knight at e2 and white pawn at f2. White bishop at c1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 13. Full move number is 25. White to move.