1nbq2nr/rp2k2p/p3p1p1/3p1P2/1b1P2p1/B1p4B/P1PQPK1P/RN4NR w - - 3 15
FEN state: 1nbq2nr/rp2k2p/p3p1p1/3p1P2/1b1P2p1/B1p4B/P1PQPK1P/RN4NR w - - 3 15 ; Best move: a3b4
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at b7, black king at e7 and black pawn at h7. Black pawn at a6, black pawn at e6 and black pawn at g6. Black pawn at d5 and white pawn at f5. Black bishop at b4, white pawn at d4 and black pawn at g4. White bishop at a3, black pawn at c3 and white bishop at h3. White pawn at a2, white pawn at c2, white queen at d2, white pawn at e2, white king at f2 and white pawn at h2. White rook at a1, white knight at b1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 15. White to move.