r2qbbnr/4p3/p1kp3p/Ppp3RP/QP1nP3/2P5/3PBPP1/RNB1K1N1 w - - 0 18
FEN state: r2qbbnr/4p3/p1kp3p/Ppp3RP/QP1nP3/2P5/3PBPP1/RNB1K1N1 w - - 0 18 ; Best move: a4a2
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at e7. Black pawn at a6, black king at c6, black pawn at d6 and black pawn at h6. White pawn at a5, black pawn at b5, black pawn at c5, white rook at g5 and white pawn at h5. White queen at a4, white pawn at b4, black knight at d4 and white pawn at e4. White pawn at c3. White pawn at d2, white bishop at e2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.