r1b1qbn1/p2ppkp1/nr6/PppN3p/1P1NP3/6p1/2PP1PBP/R1BQK1R1 w - - 0 15
FEN state: r1b1qbn1/p2ppkp1/nr6/PppN3p/1P1NP3/6p1/2PP1PBP/R1BQK1R1 w - - 0 15 ; Best move: a5b6
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at d7, black pawn at e7, black king at f7 and black pawn at g7. Black knight at a6 and black rook at b6. White pawn at a5, black pawn at b5, black pawn at c5, white knight at d5 and black pawn at h5. White pawn at b4, white knight at d4 and white pawn at e4. Black pawn at g3. White pawn at c2, white pawn at d2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. White to move.