1nb2b1r/rp1p1k1p/p2ppP2/q1Pn2p1/1P5P/BQ3P2/P2PK1P1/R4BNR w - - 0 15
FEN state: 1nb2b1r/rp1p1k1p/p2ppP2/q1Pn2p1/1P5P/BQ3P2/P2PK1P1/R4BNR w - - 0 15 ; Best move: b4a5
The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at b7, black pawn at d7, black king at f7 and black pawn at h7. Black pawn at a6, black pawn at d6, black pawn at e6 and white pawn at f6. Black queen at a5, white pawn at c5, black knight at d5 and black pawn at g5. White pawn at b4 and white pawn at h4. White bishop at a3, white queen at b3 and white pawn at f3. White pawn at a2, white pawn at d2, white king at e2 and white pawn at g2. White rook at a1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. White to move.