rnbqk2r/pppp3p/6p1/nP2pp2/Q1P2NP1/P6P/R2PPK2/2B2BR1 w - - 0 18
FEN state: rnbqk2r/pppp3p/6p1/nP2pp2/Q1P2NP1/P6P/R2PPK2/2B2BR1 w - - 0 18 ; Best move: a4a5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7 and black pawn at h7. Black pawn at g6. Black knight at a5, white pawn at b5, black pawn at e5 and black pawn at f5. White queen at a4, white pawn at c4, white knight at f4 and white pawn at g4. White pawn at a3 and white pawn at h3. White rook at a2, white pawn at d2, white pawn at e2 and white king at f2. White bishop at c1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.